big exercises for day 2, lots of functions :)

2 years ago · 8d75371748
parent 0e8863cc4b
commit 8d75371748
3 changed files with 185 additions and 0 deletions
--- a/solutions/day-03/index.html
+++ b/solutions/day-03/index.html
@ -0,0 +1,38 @@
+<!DOCTYPE html>
+<html lang="en">
+
+<head>
+    <title>30DaysOfJavaScript: Day 03</title>
+</head>
+
+<body style="background-color: black; color: white;">
+    <h1>30DaysOfJavaScript: Day 03</h1>
+    <h2>Booleans, undefined, null, date object</h2>
+
+    <!-- import your scripts here -->
+    <script src="main.js"></script>
+    <script src="level2.js"></script>
+
+</body>
+<style>
+    button{
+        color: white;
+        background-color: black;
+        padding: 5px;
+        margin: 5px;
+        border-radius: 7px;
+    }
+</style>
+    <button onclick="triangleA()">Area of a triangle</button><br>
+    <button onclick="triangleP()">Perimeter of a triangle</button><br>
+    <button onclick="rectPA()">Perimeter and area of a rectangle</button><br>
+    <button onclick="circleA()">Area of a circle</button><br>
+    <button onclick="calcSlope()">Calculate slope</button><br>
+    <button onclick="weeklyEarning()">Calculate weekly earnings</button><br>
+    <button onclick="nameLength()">Is your name long ?</button><br>
+    <button onclick="compareNames()">Is your first name longer than your last name ?</button><br>
+    <button onclick="ageCompare()">Age compare</button><br>
+    <button onclick="canDrive()">Are you allowed to drive ?</button><br>
+    <button onclick="lifeLength()">How many seconds have you lived ?</button><br>
+    <button onclick="calendar()">What's the time?</button><br>
+</html>
--- a/solutions/day-03/level2.js
+++ b/solutions/day-03/level2.js
@ -0,0 +1,98 @@
+function triangleA() {
+    let base = prompt("Input the triangles base length:");
+    let height = prompt("Input the triangles base height:");
+    let area = 0.5 * base * height;
+    alert(`The area of the triangle is ${area}`);
+}
+
+function triangleP() {
+    let a = prompt("Enter the length of side a");
+    let b = prompt("Enter the length of side b");
+    let c = prompt("Enter the length of side c");
+    let p = parseInt(a) + parseInt(b) + parseInt(c);
+    alert(p);
+}
+
+function rectPA() {
+    let width = parseInt(prompt("Enter the width of the rectangle."));
+    let height = parseInt(prompt("Enter the height of the rectangle."));
+    let p = 2 * (width + height);
+    let a = width * height;
+    alert(`The perimeter of the rectangle is ${p}\nThe area of the rectangle is ${a}`);
+}
+
+function circleA() {
+    const PI = 3.14;
+    let r = parseInt(prompt("Enter the radius of the circle."));
+    let a = PI * (r * r);
+    alert(`The area of the circle is ${a}`);
+}
+
+function calcSlope() {
+    let x1 = parseInt(prompt("Enter the x position of the first point."));
+    let y1 = parseInt(prompt("Enter the y postiion of the first point"));  
+    let x2 = parseInt(prompt("Enter the x postiion of the second point"));   
+    let y2 = parseInt(prompt("Enter the y postiion of the second point"));
+    let m = (y2-y1)/(x2-x1);
+    alert(`The slope between points (${x1},${y1}) and (${x2},${y2}) is ${m}`)
+}
+
+function weeklyEarning() {
+    let h = parseInt(prompt("Enter hours"));
+    let rate = parseInt(prompt("Enter rate"));
+    let earning = h * rate;
+    alert(`Your weekly earning is ${earning}`);
+}
+
+function nameLength() {
+    let name = prompt("Enter your name")
+    if (name.length > 7){
+        alert("Your name is long!")
+    }
+        else {
+        alert("Your name is short!")
+    }
+}
+
+function compareNames() {
+    let firstName = prompt("Enter your first name.")
+    let lastName = prompt("Enter your last name.")
+    if (firstName.length > lastName){
+        alert(`Your first name, ${firstName} is longer than your family name, ${lastName}`)
+    }
+        else {
+            alert(`Your first name, ${firstName} is not longer than your family name, ${lastName}`)
+    }
+}
+
+function ageCompare() {
+    let myAge = 250;
+    let yourAge = 25;
+    alert(`I am ${myAge - yourAge} years older than you.`);
+}
+
+function canDrive() {
+    let age = parseInt(prompt("Enter birth year."));
+    if (age > 18){
+        alert(`You are ${age}. You are old enough to drive.`);
+    }
+    else{
+        alert(`You are ${age}. You will be allowed to drive after ${18 - age} years.`);
+    }
+}
+
+function lifeLength() {
+    let age = parseInt(prompt("Enter the number of years you have lived"));
+    let sec = age * 365 * 24 * 60 * 60;
+    alert(`You have lived ${sec} seconds.`);
+}
+
+function calendar() {
+const now = new Date();
+const currentYear = now.getFullYear();
+const month = now.getMonth() + 1;
+const date = now.getDate();
+const hours = now.getHours();
+const minutes = now.getMinutes();
+alert(`${currentYear}-${month}-${day} ${hours}:${minutes}`)
+}
--- a/solutions/day-03/main.js
+++ b/solutions/day-03/main.js
@ -0,0 +1,49 @@
+let firstName =  "Eligijus"
+let lastName = "Dzikavicius"
+let country = "Lithuania"
+let city = "Kupiskis"
+let age = "17"
+let isMarried = false
+let year = "2023"
+
+console.log(parseInt("10"))
+console.log(parseInt("9.8"))
+
+let truthy1 = 12 // truthy
+let truthy2 = "string" // truthy
+let truthy3 = true // truthy
+
+let falsy1 = 0 // falsy
+let falsy2 = "" // falsy
+let falsy3 = null // falsy
+
+console.log(4 > 3) // true
+console.log(4 >= 3) // true
+console.log(4 < 3) // false
+console.log(4 <= 3) // false
+console.log(4 == 4) // true
+console.log(4 === 4) // true
+console.log(4 != 4) // false
+console.log(4 !== 4) // false
+console.log(4 != '4') // false
+console.log(4 == '4') // true
+console.log(4 === '4') // false
+console.log("python".length != "jargon".length) // false
+// All correct !
+
+const now = new Date()
+const currentYear = now.getFullYear()
+const month = now.getMonth() + 1
+const date = now.getDate()
+const day = now.getDay() + 1
+const hours = now.getHours()
+const minutes = now.getMinutes()
+const seconds = now.getSeconds()
+const allTime = now.getTime()
+
+console.log(`The current year is ${currentYear}`)
+console.log(`The current month is ${month}`)
+console.log(`The current date is ${date}`)
+console.log(`The current day of the week is ${day}`)
+console.log(`The current time is ${hours}:${minutes}:${seconds}`)
+console.log(`The amount of seconds passed since Jan 1, 1970 is ${allTime}`)