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Commite7ee3d8

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1 parent54481ee commite7ee3d8

11 files changed

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lines changed

‎accidental-global.js‎

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functionfoo(){
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lety=x=0;// window object
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x++;
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y++;
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returnx;
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}
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console.log(foo(),typeofx,typeofy);

‎class-multiple-constructors.js‎

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classRectangle{
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constructor(height,width){
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this.height=height;
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this.width=width;
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}
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constructor(width){
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this.width=width;
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}
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// Getter
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getarea(){
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returnthis.calcArea();
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}
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// Method
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calcArea(){
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returnthis.height*this.width;
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}
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}
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constsquare=newRectangle(20,30);
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console.log(square.area);// 600

‎eventloop-order.js‎

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functionmain(){
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console.log('A');
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setTimeout(
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functionprint(){console.log('B');}
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,0);
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console.log('C');
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}
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main();// A,C and B

‎floatingpoint-problem.js‎

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console.log(0.1+0.2===0.3);

‎function-arrow-context.js‎

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functionUser(name,age){
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this.name=name;
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this.age=age;
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this.getProfile=function(){
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// Outer function context
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console.log(this.constructor.name);// User
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return()=>{
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// Inner function context
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console.log(this.constructor.name);// User(Get it from the outer context)
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console.log("I'm "+this.name+", "+this.age+" yrs old");
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};
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}
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}
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letuser=newUser('John',25);
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letprofile=user.getProfile();
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profile();//I'm John, 25 yrs old

‎function-context.js‎

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functionUser(name,age){
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this.name=name;
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this.age=age;
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this.getProfile=function(){
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// Outer function context
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console.log(this.constructor.name);// User
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returnfunction(){
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// Inner function context
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console.log(this.constructor.name);// Window
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console.log("I'm "+this.name+", "+this.age+" yrs old");
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};
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}
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}
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varuser=newUser('John',25);
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varprofile=user.getProfile();
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profile();//I'm undefined, undefined yrs old

‎function-expression.js‎

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vary=1;
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console.log(y);
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if(functionf(){}){
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y+=typeoff;
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console.log(y);
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}
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console.log(y);

‎function-hoisted.js‎

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letobj=['love','blue',1016,'india']
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varcar=Vehicle.apply({},obj);
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console.log(car);
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functionVehicle(model,color,year,country){
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this.model=model;
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this.color=color;
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this.year=year;
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this.country=country;
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returnthis
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}

‎function-without-new.js‎

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functionVehicle(model,color,year,country){
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this.model=model;
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this.color=color;
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this.year=year;
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this.country=country;
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}
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varcar=newVehicle("Honda","white","2010","UK");
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console.log(car);

‎functiontest.js‎

Whitespace-only changes.

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