Web Development 184

Creating JavaScript Modules

This post is a part 17 of ECMAScript 6 Complete Tutorial post series. In nutshell JavaScript modules are just a way of packaging related JavaScript code in its own scope which can be consumed by other JavaScript programs. In this tutorial I will show the different ways to create JavaScript modules. Immediately-Invoked Function Expression IIFE […]

Image6 years ago http://qnimate.com/creating-javascript-modules/
JavaScript Change Console Log Color

In this tutorial I will show you the easiest way to style output string of JavaScript browser console. The first parameter of console.log() may contain format specifiers(a string token composed of the % sign followed by a letter that indicates the formatting to be applied). And then we can provide a comma seperated list of […]

6 years ago http://qnimate.com/javascript-change-console-log-color/
JavaScript Promise vs Callback

A callback is a function that is passed to an another function. A callback may or may not be executed asynchronously. For example; function two() {     return 2; } function x(y) {     //execute y     return y(); } console.log(x(two)); //2 Here two() is a function. We are passing it as […]

6 years ago http://qnimate.com/javascript-promise-vs-callback/
Difference between “Map” and “WeakMap” in JavaScript

This post is a part 16 of ECMAScript 6 Complete Tutorial post series. JavaScript “Map” and “WeakMap” objects allows you to store collection of unique keys and their corresponding values. But there are some key differences between them. Here are the differences: They both behave differently when a object referenced by their keys/values gets deleted. […]

6 years ago http://qnimate.com/difference-between-map-and-weakmap-in-javascript/
JavaScript “Map” Object

This post is a part 15 of ECMAScript 6 Complete Tutorial post series. JavaScript “Map” object is a collection of unique keys and corresponding values. Keys and Values can be object references or primitive types. 2D Arrays can store duplicate values but Maps don’t store duplicate keys, this is what makes it different from 2D […]

6 years ago http://qnimate.com/javascript-map-object/
Difference between Set and WeakSet in JavaScript

This post is a part 14 of ECMAScript 6 Complete Tutorial post series. JavaScript Set and WeakSet objects allows you to store collection of unique keys. But there are some key differences between them. Here are the differences: They both behave differently when a object referenced by their keys gets deleted. Lets take the below […]

6 years ago http://qnimate.com/difference-between-set-and-weakset-in-javascript/
JavaScript “Set” Object

This post is a part 13 of ECMAScript 6 Complete Tutorial post series. JavaScript “Set” object is a collection of unique keys. Keys are object references or primitive types. Arrays can store duplicate values but Sets don’t store duplicate keys, this is what makes it different from arrays. Here is code example on how to […]

6 years ago http://qnimate.com/javascript-set-object/
JavaScript “0b” Literal

This post is a part 12 of ECMAScript 6 Complete Tutorial post series. “0b” lets you create a number using binary of the number directly. Developers usually provide number in decimal representation and it was converted to binary and stored in memory but from ES6 onwards you can specify the binary of the number directly. […]

6 years ago http://qnimate.com/javascript-0b-literal/
JavaScript “0o” Literal

This post is a part 11 of ECMAScript 6 Complete Tutorial post series. “0o” is a new way of creating a number using octal value in ES6. Earlier to ES6, JS developers had to use “0” in front of numbers to specify its a octal number. JavaScript internally converts hexadecimal and octal numbers to decimal […]

6 years ago http://qnimate.com/javascript-0o-literal/
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