Merge fb974118c5 into 29e4101818

01_Day_Introduction/01_day_starter/main.js

@@ -1,4 +1,8 @@
 // the variable values can be accessed from other variable.js file
-console.log(firstName, lastName, country, city, age, isMarried) 
-console.log(gravity, boilingPoint, PI) // 9.81, 100, 3.14
-console.log(name, job, live)
+console.log(firstName, lastName, country, city, age, isMarried);
+console.log(gravity, boilingPoint, PI); // 9.81, 100, 3.14
+console.log(name, job, live);
+
+// comments can make code readable
+// Welcome to 30DaysOfJavaScript
+/* comments can make code readable, easy to reuse and informative  */

02_Day_Data_types/02_day_starter/main.js

@@ -1 +1,67 @@
-// this is your main.js script
+// this is your main.js script
+// Exercise 1
+const challenge = "30 Days Of Javascript";
+const str1 = "30 Days Of";
+const str2 = " Javascript";
+const companies = "Facebook, Google, Microsoft, Apple, IBM, Oracle, Amazon";
+const sentence =
+  "You cannot end a sentence with because because because is a conjunction";
+
+console.log(challenge);
+console.log(challenge.length);
+console.log(challenge.toUpperCase());
+console.log(challenge.substring(0, 2));
+console.log(challenge.slice(3));
+console.log(challenge.includes("script"));
+console.log(challenge.split(" "));
+console.log(companies.split(","));
+console.log(challenge.replace("Javascript", "Python"));
+console.log(challenge.charAt(15));
+console.log(challenge.charCodeAt("J"));
+console.log(challenge.indexOf("a"));
+console.log(challenge.lastIndexOf("a"));
+console.log(sentence.indexOf("because"));
+console.log(sentence.lastIndexOf("because"));
+console.log(sentence.search("because"));
+console.log(challenge.trim(" "));
+console.log(challenge.startsWith(30));
+console.log(challenge.endsWith("Javascript"));
+console.log(challenge.match("a"));
+console.log(str1.concat(str2));
+console.log(challenge.repeat(2));
+
+// Excercise 2
+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."
+);
+
+let num = "10";
+console.log(typeof 10 === typeof +"10");
+console.log(parseInt(Math.round(+"9.8")) === 10);
+console.log("Python".includes("on") && "jargon".includes("on"));
+const checkSentence = "I hope this course is not full of jargon.";
+console.log(checkSentence.includes("jargon"));
+console.log(Math.floor(Math.random() * 101));
+console.log(Math.floor(Math.random() * (100 - 50 + 1) + 50));
+console.log(Math.floor(Math.random() * (255 + 1)));
+const js = "JavaScript";
+const random = Math.floor(Math.random() * js.length + 1);
+console.log(js.charAt(random), random);
+console.log("1 1 1 1 1 \n2 1 2 4 8 \n3 1 3 9 27 \n5 1 5 25 125");
+
+const string = `You cannot end a sentence with because because because is a conjunction`;
+
+console.log(string.substring(30, 54));
+
+// Exercise 3
+const loveSentence =
+  "Love is the best thing in this world. Some found their love and some are still looking for their love.";
+console.log(loveSentence.split("love").length);
+let pattern = /because/gi;
+console.log(string.match(pattern).length);
+const sentence3 =
+  "He earns 5000 euro from salary per month, 10000 euro annual bonus, 15000 euro online courses per month.";
+
+const pattern2 = /\d+/g;
+const sentenceRegex = sentence3.match(pattern2);
+console.log(+sentenceRegex[0] + +sentenceRegex[1] + +sentenceRegex[2]);