Merge d4cbe51d64 into 29e4101818
Frank Willis
5 months ago
committed by
GitHub
commit
66e2f5ae9d
@ -1 +1,94 @@
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// this is your main.js script
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// this is your main.js script
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let challenge = "30 Days Of Javascript";
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// console.log(challenge);
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// console.log(challenge.length);
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// console.log(challenge.toUpperCase());
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// console.log(challenge.toLowerCase());
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// console.log(challenge.substring(0, 2));
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// console.log(challenge.substring(3));
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// console.log(challenge.includes("Script"));
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// console.log(challenge.split());
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// console.log(challenge.split(" "));
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// console.log('Facebook, Google, Microsoft, Apple, IBM, Oracle, Amazon'.split(","));
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// console.log(challenge.replace("Javascript", "Python"));
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// console.log(challenge.charAt(15));
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// console.log(challenge.charCodeAt("J"));
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// console.log(challenge.indexOf("a"));
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// console.log(challenge.lastIndexOf("a"));
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// console.log(
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// "You cannot end a sentence with because because because is a conjunction".indexOf("because")
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// );
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// console.log(
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// "You cannot end a sentence with because because because is a conjunction".lastIndexOf(
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// "because"
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// )
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// );
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// console.log(
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// "You cannot end a sentence with because because because is a conjunction".search(
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// "because"
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// )
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// );
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// console.log(" 30 Days Of Javascript ".trim(" "));
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// console.log(challenge.startsWith("30"));
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// console.log(challenge.endsWith("Javascript"));
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// console.log(challenge.match(/a/gi));
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// let challenge2 = "30 Days of";
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// let challenge3 = "Javascript";
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// console.log(challenge2.concat(" ", challenge3))
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// console.log(challenge.repeat(3))
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// console.log(`The quote 'There is no exercise better for the heart than reaching down and lifing people up.' by John Holmes teaches us to help one another.`)
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// console.log(`"Love is not patronizing and charity isn't about pity, it is about love. Charity and love are the same -- with charity you give love, so don't just give money but reach out your hand instead."
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// `);
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// console.log(parseFloat("10") === 10);
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// console.log("python".includes("on") && "jargon".includes("on"))
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// // console.log("I hope this course is not full of jargon".includes("jargon"))
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// console.log(`1\t1\t1\t1\t1\n2\t1\t2\t4\t8\n3\t1\t3\t9\t27\n4\t1\t4\t16\t64\n5\t1\t5\t25\t125`);
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// console.log(Math.floor(Math.random() * (100 - 50) + 50));
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// console.log(Math.floor(Math.random() * 256));
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// console.log("Javascript".charAt(Math.floor(Math.random() * "Javascript".length)));
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let text =
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"You cannot end a sentence with because because because in a conjunction";
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// console.log(text.substring(text.indexOf("because"), text.lastIndexOf("because")));
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// console.log(text.lastIndexOf("because"));
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let text2 = text.split(" ");
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text2.splice(text2.indexOf("because"), 3);
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console.log(text2.join(" "));
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let loveText =
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"Love is the best thing in this world. Some found their love and some are still looking for their love";
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let counter = 0;
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loveText.split(" ").forEach((element) => {
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element.toLowerCase() === "love" ? counter++ : undefined;
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});
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console.log(counter);
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console.log(text.match(/because/gi).length);
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let income =
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"He earns 5000 euro from salary per month, 10000 euro annual bonus, 15000 euro online courses per month.";
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let incomechunks = income.split(",");
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let totalIncome = 0;
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incomechunks.forEach((chunk) => {
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if (chunk.includes("month")) {
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chunk
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.trim()
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.split(" ")
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.forEach((chunksalary) => {
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if (+chunksalary > 0) {
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totalIncome += chunksalary * 12;
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}
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});
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}
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if (chunk.includes("annual")) {
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chunk
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.trim()
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.split(" ")
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.forEach((chunksalary) => {
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if (+chunksalary > 0) {
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totalIncome += +chunksalary;
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}
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});
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}
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});
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console.log(totalIncome);
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@ -1 +1,101 @@
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// this is your main.js script
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// this is your main.js script
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// let firstname = "Frank";
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// let lastName = "Willis";
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// let country = "Kenya";
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// let city = "Mombasa";
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// let age = 28;
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// let isMarried = true;
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// let year = new Date().getFullYear();
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// let year2 = 2025;
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console.log(4 > 3); //true
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console.log(4 >= 3); //true
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console.log(4 < 3); //false
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console.log(4 <= 3); //false
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console.log(4 == 4); //true
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console.log(4 === 4); //true
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console.log(4 != 4); //false
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console.log(4 !== 4); //false
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console.log(4 != "4"); //false
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console.log(4 == "4"); //true
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console.log(4 === "4"); //false
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console.log("python".length != "jargon".length)
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console.log(4 > 3 && 10 < 12); //true
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console.log(4 > 3 && 10 > 12); //false
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console.log(4 > 3 || 10 < 12); //true
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console.log(4 > 3 || 10 > 12); //true
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console.log(!(4 > 3)); //false
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console.log(!(4 < 3)); //true
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console.log(!false); //true
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console.log(!(4 > 3 && 10 < 12)); //false
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console.log(!(4 > 3 && 10 > 12)); //true
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console.log(!(4 === "4")); //true
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let base = window.prompt("Enter the base");
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let height = window.prompt("Enter the height");
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let area = base * height * 0.5;
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window.alert(`The area is ${area}`);
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let sidea = window.prompt("Enter the first side");
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let sideb = window.prompt("Enter the second side");
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let sidec = window.prompt("Enter the third side");
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let perimeter = Number(sidea) + Number(sideb) + Number(sidec);
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window.alert(`The perimeer of the triangle is ${perimeter}`);
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let hours = window.prompt("Enter hours worked");
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let rateperhour = window.prompt("Enter rate per hour");
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let totalpay = hours * rateperhour;
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window.alert(`Your pay is $ ${totalpay}`);
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console.log("FrankWillis".length > 7 ? "My name is long" : "My name is short");
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let firstName = "Frank";
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let lastName = "Anais";
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firstName.length > lastName.length
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? console.log(
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`Your first name, ${firstName} is longer than your family name, ${lastName}`
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)
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: console.log(
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`Your first name, ${lastName} is longer than your family name, ${firstName}`
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);
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let myAge = 25;
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let yourAge = 252;
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myAge > yourAge
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? console.log(`I am ${myAge - yourAge} years older than you.`)
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: console.log(`You are ${yourAge - myAge} years older than me.`);
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let yearOfBirth = window.prompt("Enter year of birth");
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let currentYear = new Date().getFullYear();
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let currentAge = currentYear - yearOfBirth;
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currentAge >= 18
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? window.alert(`You are ${currentAge}. You are old enough to drive`)
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: window.alert(
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`You are ${currentAge}. You will be allowed to drive after ${
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18 - currentAge
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}`
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);
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let noYears = window.prompt("Enter years to be converted");
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let seconds = noYears * 365 * 24 * 3600;
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window.alert(`You lived ${seconds} seconds`);
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let now = new Date();
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let year = now.getFullYear();
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let month = now.getMonth();
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let date = now.getDate();
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let hour = now.getHours();
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let minutes = now.getMinutes();
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minutes > 9 ? minutes : minutes = `0${minutes}`;
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hour > 9 ? hour : (hour = `0${hour}`);
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month > 9 ? month++ : month = `0${month + 1}`;
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// console.log(`${year}-0${month+1}-${date} ${hour}:${minutes}`)
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// console.log(`${date}-0${month+1}-${year} ${hour}:${minutes}`);
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// console.log(`${date}/0${month + 1}/${year} ${hour}:${minutes}`);
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console.log(`${year}-${month}-${date} ${hour}:${minutes}`);
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@ -1,3 +1,122 @@
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// this is your main.js script
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alert('Open the browser console whenever you work on JavaScript')
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// alert('Open the browser console whenever you work on JavaScript')
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// let age = window.prompt("Enter your age");
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// let message =
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// age >= 18
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// ? `You are old enough to drive`
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// : `You are left with ${18 - age} years to drive`;
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// window.alert(message);
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// let myAge = 82;
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// let yourAge = 32;
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// let comparison =
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// myAge > yourAge
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// ? `I am ${myAge - yourAge} years older than you`
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// : `You are ${yourAge - myAge} years older than me`;
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// console.log(comparison);
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// let a = 21;
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// let b = 22;
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// const greater =
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// a > b
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// ? `${a} is greater than ${b}`
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// : b > a
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// ? `${b} is greater than ${a}`
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// : `${a} is equal to ${b}`;
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// console.log(greater);
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// let number = 10;
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// const result = number % 2 == 0 ? `${number} is an even number` : `${number} is an odd number`;
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// console.log(result)
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// let score = window.prompt("Enter the score");
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// switch (true) {
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// case score >= 80 && score <= 100:
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// console.log("A");
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// break;
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// case score >= 70 && score < 80:
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// console.log("B");
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// break;
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// case score >= 60 && score < 70:
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// console.log("C");
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// break;
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// case score >= 50 && score < 60:
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// console.log("D");
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// break;
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// default:
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// console.log("F");
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// break;
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// }
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// let period = window
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// .prompt("Enter the month to find out the season")
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// .toLowerCase();
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// switch (true) {
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// case period == "september" || period == "october" || period == "november":
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// console.log("The season is Autumn");
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// break;
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// case period == "december" || period == "january" || period == "february":
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// console.log("The season is Winter");
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// break;
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// case period == "march" || period == "april" || period == "may":
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// console.log("The season is Spring");
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// break;
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// default:
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// console.log("The season is Summer");
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// }
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// let day = "friday".toLowerCase();
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// switch (true) {
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// case day == "saturday" || day == "sunday":
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// let processedWeekend = day.split("");
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// processedWeekend.splice(0, 1);
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// console.log(
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// `${day.charAt(0).toUpperCase()}${processedWeekend.join(
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// ""
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// )} is a weekend`
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// );
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// break;
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// default:
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// let processedWeekDay = day.split("");
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// processedWeekDay.splice(0, 1);
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// console.log(
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// `${day.charAt(0).toUpperCase()}${processedWeekDay.join(
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// ""
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// )} is a weekday`
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// );
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// }
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let months = [
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"January",
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"February",
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"March",
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"April",
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"May",
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"June",
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"July",
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"August",
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"September",
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"October",
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"November",
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"December",
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];
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let daysNormal = [31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31];
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let daysLeap = [31, 29, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31];
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let month = "March";
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let currYear = new Date().getFullYear();
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let isLeap = currYear % 4 == 0 ? "leap" : "normal";
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console.log(
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isLeap == "leap"
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? `The number of days in ${month} are ${daysLeap[months.indexOf(month)]}`
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: `The number of days in ${month} are ${daysNormal[months.indexOf(month)]}`
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);
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@ -0,0 +1,9 @@
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export const webTechs = [
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"HTML",
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"CSS",
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"JavaScript",
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"React",
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"Redux",
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"Node",
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"MongoDB",
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];
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@ -1,3 +0,0 @@
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console.log(countries)
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alert('Open the browser console whenever you work on JavaScript')
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alert('Open the console and check if the countries has been loaded')
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@ -0,0 +1,252 @@
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// import { webTechs } from "../data/webtechs";
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import { countries } from "../data/countries.mjs";
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import { webTechs } from "../data/webtechs.mjs";
|
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//Declare an empty array;
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const emptyArray = [];
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|
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//Declare an array with more than 5 number of elements
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const numbers = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10];
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|
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//Find the length of the array
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// console.log("Length of numbers array:", numbers.length);
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//Get the first, middle and last elements of the array
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// console.log("First Item:", numbers[0]);
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// console.log("Middle Item:", numbers[Math.floor(numbers.length / 2)]);
|
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// console.log("Last Item:", numbers[numbers.length - 1]);
|
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|
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//Declare an array called mixedDataTypes, put different data types in the array and find the length of the array. The array size should be greater than 5
|
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const mixedDataTypes = [
|
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1,
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"string",
|
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true,
|
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null,
|
||||
undefined,
|
||||
{ key: "value" },
|
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[1, 2, 3],
|
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];
|
||||
|
||||
//Declare an array variable name it itCompanies and assign initial values
|
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const itCompanies = [
|
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"Facebook",
|
||||
"Google",
|
||||
"Microsoft",
|
||||
"Apple",
|
||||
"IBM",
|
||||
"Oracle",
|
||||
"Amazon",
|
||||
"Netflix",
|
||||
];
|
||||
|
||||
//Print the array using console.log()
|
||||
// console.log("IT Companies:", itCompanies);
|
||||
|
||||
//Print the number of companies in the array
|
||||
// console.log("IT Companies count:", itCompanies.length);
|
||||
|
||||
//Print the first, middle and last IT company
|
||||
// console.log("First IT Company:", itCompanies[0]);
|
||||
// console.log(
|
||||
// "Middle IT Company:",
|
||||
// itCompanies[Math.floor(itCompanies.length / 2)]
|
||||
// );
|
||||
// console.log("Last IT Company:", itCompanies[itCompanies.length - 1]);
|
||||
|
||||
//Print out each company
|
||||
// console.log("IT Companies List:");
|
||||
// itCompanies.forEach((company) => console.log(company));
|
||||
|
||||
//Change each company name to uppercase one by one and print them out
|
||||
// console.log("Companies in Uppercase");
|
||||
// itCompanies.forEach((company) => console.log(company.toUpperCase()));
|
||||
|
||||
//Print out the Array as a sentence
|
||||
// console.log(itCompanies.toString());
|
||||
|
||||
//Check if a certain company exists in the itCompanies array. If it exists, return the company else return a company is not found
|
||||
let companySearch = "IBAM";
|
||||
// itCompanies.includes(companySearch) == true
|
||||
// ? console.log(companySearch, "has been found")
|
||||
// : console.log(`The company ${companySearch} is not found`);
|
||||
|
||||
//Filter out companies which have more than one "o" without the filter method
|
||||
// console.log("Companies with double o")
|
||||
let doubleo = [];
|
||||
for (let company of itCompanies) {
|
||||
company.match(/oo/gm) ? doubleo.push(company) : null;
|
||||
}
|
||||
// console.log(doubleo);
|
||||
|
||||
//Sort the array using sort() method
|
||||
// console.log(itCompanies.sort());
|
||||
|
||||
//Reverse the array using the reverse() method
|
||||
// console.log(itCompanies.reverse());
|
||||
|
||||
//Slice out the first 3 companies from the array
|
||||
// itCompanies.splice(0, 3);
|
||||
// console.log(itCompanies)
|
||||
|
||||
//Slice out the last 3 companies from the array
|
||||
// itCompanies.splice(itCompanies.length - 3, 3);
|
||||
// console.log(itCompanies)
|
||||
|
||||
//Slice out the middle IT company or companies from the array
|
||||
// if (itCompanies.length % 2 > 0) {
|
||||
// itCompanies.splice(Math.floor(itCompanies.length / 2), 1);
|
||||
// } else {
|
||||
// itCompanies.splice(Math.floor(itCompanies.length / 2) - 1, 2);
|
||||
// }
|
||||
// console.log(itCompanies)
|
||||
|
||||
//Remove the first IT company from the array
|
||||
// itCompanies.shift();
|
||||
// console.log(itCompanies)
|
||||
|
||||
//Remove the middle IT company or companies from the array
|
||||
// if (itCompanies.length % 2 > 0) {
|
||||
// itCompanies.splice(Math.floor(itCompanies.length / 2), 1);
|
||||
// } else {
|
||||
// itCompanies.splice(Math.floor(itCompanies.length / 2) - 1, 2);
|
||||
// }
|
||||
// console.log(itCompanies)
|
||||
|
||||
//Remove the last IT company from the array
|
||||
// itCompanies.pop();
|
||||
// console.log(itCompanies);
|
||||
|
||||
//Remove all the IT companies
|
||||
// console.log(itCompanies.splice());
|
||||
|
||||
//LEVEL 2
|
||||
|
||||
//Create separate files for countries and web_techs and access from this file.
|
||||
// console.log(countries)
|
||||
// console.log(webTechs);
|
||||
|
||||
//Remove punctuations and change the string to array and count the number of words in it.
|
||||
|
||||
let text =
|
||||
"I love teaching and empowering people. I teach HTML, CSS, JS, React, Python.";
|
||||
|
||||
let words = text.replace(/\,|\./gm, "").split(" ");
|
||||
// console.log("Text Array:", words)
|
||||
// console.log(`Text Length: ${words.length}`);
|
||||
|
||||
//In the following shopping cart add, remove, edit items
|
||||
const shoppingCart = ["Milk", "Coffee", "Tea", "Honey"];
|
||||
|
||||
//Add 'Meat' in the beginning of your shoppinh cart if it has not been already added
|
||||
let foodToAdd = "Meat";
|
||||
let checkFood = shoppingCart.includes(foodToAdd);
|
||||
!checkFood ? shoppingCart.unshift(foodToAdd) : "";
|
||||
// console.log(shoppingCart);
|
||||
|
||||
//Add Sugar at the end of your shopping cart if it has not already been added
|
||||
let foodToAdd2 = "Sugar";
|
||||
let checkFood2 = shoppingCart.includes(foodToAdd2);
|
||||
!checkFood2 ? shoppingCart.push(foodToAdd2) : "";
|
||||
// console.log(shoppingCart);
|
||||
|
||||
//Remove Honey if you are allergic to honey
|
||||
let foodToRemove = "Honey";
|
||||
let allergy = shoppingCart.includes(foodToRemove);
|
||||
allergy ? shoppingCart.splice(shoppingCart.indexOf(foodToRemove), 1) : null;
|
||||
// console.log(shoppingCart);
|
||||
|
||||
//Modify Tea to 'Green Tea'
|
||||
let searchItem = "Tea";
|
||||
let checkItem = shoppingCart.includes(searchItem);
|
||||
checkItem
|
||||
? (shoppingCart[shoppingCart.indexOf(searchItem)] = "Green Tea")
|
||||
: null;
|
||||
// console.log(shoppingCart);
|
||||
|
||||
//Check if Ethiopia exists in the countries array. If it exists, print 'ETHIOPIA'. If not, add it to the countries list
|
||||
let checkCountries = countries.includes("Ethiopia");
|
||||
checkCountries ? console.log("ETHIOPIA") : countries.push("Ethiopia");
|
||||
|
||||
//Check if Sass exists in webTechs, if it exists, print 'Sass is a CSS Preprocessor'. If not, add Sass to webTechs
|
||||
|
||||
let checkWebTechs = webTechs.includes("Sass");
|
||||
checkWebTechs
|
||||
? console.log("Sass is a CSS Preprocessor")
|
||||
: webTechs.push("Sass");
|
||||
// console.log(webTechs);
|
||||
|
||||
//Concatenate the following two variables and store it in a fullStack variable
|
||||
const frontEnd = ["HTML", "CSS", "JS", "React", "Redux"];
|
||||
const backend = ["Node", "Express", "MongoDB"];
|
||||
|
||||
let fullStack = frontEnd.concat(backend);
|
||||
// console.log(fullStack);
|
||||
|
||||
//LEVEL 3
|
||||
|
||||
//sort array of student ages
|
||||
const ages = [19, 22, 19, 24, 20, 25, 26, 24, 25, 24];
|
||||
|
||||
ages.sort((a, b) => a - b);
|
||||
|
||||
console.log(ages);
|
||||
|
||||
//Find the median age (one middle item or two middle items divided by two)
|
||||
let median =
|
||||
ages.length % 2 > 0
|
||||
? ages[Math.floor(ages.length / 2)]
|
||||
: Math.round((ages[ages.length / 2 - 1] + ages[ages.length / 2]) / 2);
|
||||
// console.log(median)
|
||||
|
||||
//Find the average age (all items divided by number of items)
|
||||
let sumAges = 0;
|
||||
ages.forEach((age) => (sumAges += age));
|
||||
let average = sumAges / ages.length;
|
||||
// console.log(average);
|
||||
|
||||
//Find the range of the ages (max minus min)
|
||||
let minAge = Math.min(...ages);
|
||||
let maxAge = Math.max(...ages);
|
||||
//using arrays after sorting
|
||||
//let minAge = ages[0]
|
||||
//let maxAge = ages.reverse()[0];
|
||||
let range = maxAge - minAge;
|
||||
// console.log(range)
|
||||
|
||||
//Compare the value of (min - average) and (max - average), use abs() method
|
||||
let minval = minAge - average;
|
||||
let maxval = maxAge - average;
|
||||
console.log(Math.abs(maxval - minval));
|
||||
|
||||
//Slice the first ten countries from countries array
|
||||
// console.log(countries.slice(0, 10));
|
||||
|
||||
//Find the middle country(ies) in the countries array
|
||||
countries.length % 2 !== 0
|
||||
? console.log(countries[Math.ceil(countries.length / 2) - 1])
|
||||
: console.log(
|
||||
countries[Math.floor(countries.length / 2 - 2)],
|
||||
countries[Math.floor(countries.length / 2 - 1)]
|
||||
);
|
||||
|
||||
//Divide the countries array into two equal arrays if it is even. if not, add one more country to the first half
|
||||
|
||||
let firstHalf = [];
|
||||
let secondHalf = [];
|
||||
|
||||
let isEven = countries.length % 2 !== 0 ? false : true;
|
||||
|
||||
isEven
|
||||
? (firstHalf.push(...countries.slice(0, countries.length / 2)),
|
||||
secondHalf.push(...countries.slice(countries.length / 2, countries.length)))
|
||||
: (firstHalf.push(...countries.slice(0, Math.ceil(countries.length / 2))),
|
||||
secondHalf.push(
|
||||
...countries.slice(Math.ceil(countries.length / 2), countries.length)
|
||||
));
|
||||
|
||||
console.log(isEven);
|
||||
console.log(countries.length);
|
||||
console.log(firstHalf.length, firstHalf);
|
||||
console.log(secondHalf.length, secondHalf);
|
||||
|
||||
console.log("New change");
|
||||
@ -1,2 +1,3 @@
|
||||
console.log(countries)
|
||||
alert('Open the console and check if the countries has been loaded')
|
||||
alert('Open the console and check if the countries has been loaded')
|
||||
console.log("loops")
|
||||
Loading…
Reference in new issue