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Commita0575a1

Browse files
author
Ashfaq
committed
intermediate commit
1 parentab31a4c commita0575a1

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2 files changed

+117
-87
lines changed

2 files changed

+117
-87
lines changed

‎Objects/Objects.js‎

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/* use strict */
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varobj1={
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name:"cat"
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};
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varobj2=Object.create({});
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varobj3=Object.create({name:"cat"});
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debugger;
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console.log(obj1,obj2,obj3);
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/*
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* An Object have 4 properties
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* 1. Values:
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* 2. Flags:
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* a.) writable: if true you can update the property otherwise readOnly; {this can be reconfigured}
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* b.) configurable: if true you can delete update and change the property; {}
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* c.) enumerable: if true you will get this property while looping over it otherwise not;
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*/

‎closures.js‎

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Original file line numberDiff line numberDiff line change
@@ -1,91 +1,100 @@
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functiongreet(whatToSay){
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returnfunction(name){
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console.log(`${whatToSay} :${name}`)
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// function greet(whatToSay) {
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// return function(name) {
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// console.log(`${whatToSay} : ${name}`);
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// };
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// }
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// greet("Hi")("ashfaq");
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// var sayHi = greet("Hi");
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// // function have access to lexically scoped variable and function when it is invoked outside of the scope{execution context}
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// sayHi("Kranthi");
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// function build() {
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// var arr = [];
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// for (var i = 0; i < 3; i++) {
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// arr.push(function() {
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// console.log(i);
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// });
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// }
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// return arr;
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// }
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// var fs = build();
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// fs[0](); //3
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// fs[1](); //3
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// fs[2](); //3
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// // solution1 Old school By using IIFE
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// function build2() {
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// var arr = [];
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// for (var i = 0; i < 3; i++) {
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// arr.push(
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// (function(j) {
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// return function() {
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// console.log(j);
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// };
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// })(i)
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// );
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// }
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// return arr;
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// }
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// var fs2 = build2();
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// fs2[0](); //3
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// fs2[1](); //3
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// fs2[2](); //3
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// // ES6 solution By using let
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// function build3() {
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// var arr = [];
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// for (let i = 0; i < 3; i++) {
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// arr.push(function() {
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// console.log(i);
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// });
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// }
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// return arr;
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// }
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// var fs3 = build3();
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// fs3[0](); //0
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// fs3[1](); //1
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// fs3[2](); //2
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// // KYLE SIMPSON deep javascript //
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// // closure is preservation of linkage of variable not value
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// var teacher = "kyle";
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// var myTeacher = function() {
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// console.log(teacher);
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// };
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// teacher = "Simpson";
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// myTeacher();
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functiontest(){
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vardata="SDSD";
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functiontest1(){
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return(data=1+data);
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}
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}
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greet('Hi')('ashfaq');
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varsayHi=greet('Hi');
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// function have access to lexically scoped variable and function when it is invoked outside of the scope{execution context}
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sayHi("Kranthi");
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functionbuild(){
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vararr=[];
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for(vari=0;i<3;i++){
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arr.push(
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function(){
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console.log(i)
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}
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)
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functiontest2(){
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return(data=2+data);
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}
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returnarr;
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}
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varfs=build();
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fs[0]();//3
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fs[1]();//3
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fs[2]();//3
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// solution1 Old school By using IIFE
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functionbuild2(){
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vararr=[];
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for(vari=0;i<3;i++){
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arr.push(
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(function(j){
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returnfunction(){
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console.log(j)
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}
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}(i))
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)
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}
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returnarr;
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}
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varfs2=build2();
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fs2[0]();//3
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fs2[1]();//3
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fs2[2]();//3
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// ES6 solution By using let
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functionbuild3(){
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vararr=[];
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for(leti=0;i<3;i++){
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arr.push(
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function(){
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console.log(i)
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}
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)
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functiontest3(){
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return(data=3+data);
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}
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returnarr;
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return{
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test1,
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test2,
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test3
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};
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}
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varfs3=build3();
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fs3[0]();//0
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fs3[1]();//1
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fs3[2]();//2
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// KYLE SIMPSON deep javascript //
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// closure is preservation of linkage of variable not value
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varteacher="kyle";
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varmyTeacher=function(){
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console.log(teacher)
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}
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teacher="Simpson"
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myTeacher()
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letz=test();
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console.log(z.test1(),z.test2(),z.test3());

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