Day-1 Done

01_Day_Introduction/solutions/datatypes.js

@@ -0,0 +1,39 @@
+// 5
+const string = "string";
+const boolean = true;
+const undefin = undefined;
+const nill = null;
+
+console.log(typeof string);
+console.log(typeof boolean);
+console.log(typeof undefin);
+console.log(typeof nill);
+
+// 6
+let one;
+let two;
+let three;
+let four;
+
+// 7
+let one1 = 1;
+let two2 = 2;
+let three3 = 3;
+let four4 = 4;
+
+// 8
+let First_name;
+let Last_name;
+let Marital_status;
+let Country;
+let Age;
+
+// 9
+let first_name, last_name, marital_status, country, age;
+
+// 10
+let myAge = 25,
+  yourAge = 19;
+
+console.log(`I am ${myAge} years old.`);
+console.log(`You are ${yourAge} years old.`);

01_Day_Introduction/solutions/solutions.js

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+// 1
+// comments can make code readable
+
+// 2
+// Welcome to 30DaysOfJavaScript
+
+// 3
+/*  comments can make code readable, easy to reuse and informative */

01_Day_Introduction/solutions/variable.js

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+// 4
+const string = "string";
+const boolean = true;
+const undefin = undefined;
+const nill = null;

01_Day_Introduction/variable.js

@@ -1,17 +0,0 @@
-// Declaring different variables of different data types
-let firstName = 'Asabeneh' // first name of a person
-let lastName = 'Yetayeh' // last name of a person
-let country = 'Finland' // country
-let city = 'Helsinki' // capital city
-let age = 100 // age in years
-let isMarried = true
-
-// Declaring variables with number values
-const gravity = 9.81 // earth gravity  in m/s2
-const boilingPoint = 100 // water boiling point, temperature in oC
-const PI = 3.14 // geometrical constant
-
-// Variables can also be declaring in one line separated by comma
-let name = 'Asabeneh', //name of a person
-  job = 'teacher',
-  live = 'Finland'