conatiner config done

Author: SakshiHanwat

01_basics/01_variables.js

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+const accountId = 144553
+let accountEmail = "sakshi@google.com"
+var accountPassword = "12345"
+accountCity = "Jaipur"
+let accountState;
+//accountID =2not allowed
+
+accountEmail = "hanwat7@google.com"
+accountPassword = "23456"
+accountCity = "Dewas"
+
+/*Prefer not to use of issue in block scope and functional scope */
+
+console.table([accountId, accountEmail, accountPassword, accountCity, accountState])

01_basics/02_datatypes.js

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+"use strict"; //treat all js as newer version
+
+//alert("hello")
+//alert(3 + 3) we are using nodejs, not browser
+
+console.log(3 + 3)
+
+let name = "hitesh"
+let age = 18
+let isLoggedIn = false 
+
+//number => 2 to power 53
+//bigint -- use whwn number limt reched
+//string => ""
+// boolean => true/false
+// null => standalone value
+//undefined => value not assigned
+// symbol => unique
+
+// object
+console.log(typeof "hitesh")
+console.log(typeof undefined)
+console.log(typeof null)

01_basics/03_conversionOperation.js

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+let score = "hitesh"
+
+//console.log(typeof score);
+//console.log(typeof(score));
+
+let valueInNumber = Number(score)
+    //console.log(typeof valueInNumber);
+    //console.log(valueInNumber);
+
+
+// "33" => 33
+// "33abc" => NaN
+//  true => 1; false => 0
+
+let isLoggedIn = "hitesh"
+
+let booleanIsLoggedIn = Boolean(isLoggedIn)
+    //  console.log(booleanIsLoggedIn);
+
+// 1 => true; 0 => false
+// "" => false
+// "hitesh" => true
+
+let someNumber = 33
+
+let stringNumber = String(someNumber)
+    // console.log(stringNumber);
+    // console.log(typeof stringNumber);
+
+// *********************** Operations ***********************
+
+let value = 3
+let negValue = -value
+    // console.log(negValue);
+
+// console.log(2+2);
+// console.log(2-2);
+// console.log(2*2);
+// console.log(2**3);
+// console.log(2/3);
+// console.log(2%3);
+
+let str1 = "hello"
+let str2 = " hitesh"
+
+let str3 = str1 + str2
+    // console.log(str3);
+
+// console.log("1" + 2);
+// console.log(1 + "2");
+// console.log("1" + 2 + 2);
+// console.log(1 + 2 + "2");
+
+// console.log( (3 + 4) * 5 % 3);
+
+// console.log(+true);
+// console.log(+"");
+
+let num1, num2, num3
+
+num1 = num2 = num3 = 2 + 2
+
+let gameCounter = 100
+    ++gameCounter;
+console.log(gameCounter);
+
+// link to study
+// https://tc39.es/ecma262/multipage/abstract-operations.html#sec-type-conversion