Topic

es6

A collection of 4 issues

Destructuring Objects in ES6

What is destructuring? Destructuring is a way to extract values from nested arrays and objects.When you use destructuring, you are taking a JavaScript expression and extracting data from either arrays, objects, maps, and sets into their own variable. It also allows you to extract properties on an object or

JavaScript Template Literals

Photo credit by Hongkiat Traditionally, strings in JavaScript were limited, especially if you were working in languages like Ruby and Python. In both of those languages string interpolation meant that you could substitute strings and have multiline string concatenation without wonky hacks. In JavaScript, there wasn’t anything like this

Use Cases for the Spread Operator

One of the coolest features of ES6 is the Spread Operator. The syntax looks a bit like: let a = [4, 5, 6]; let b = [7, …a, 8]; console.log(b); This will give us: The spread operator replaces the concat function in ES5: “use strict“; var a = [4, 5, 6]

ES6 Modules

ES6 modules allows us to have reusable code, in separate files. We do this to eliminate initially massive js files, like app.js in a Node and Express project. Modules allow us to spread code over relevant files. Take this students.js file const students = [‘Peter’, ‘Paul’, ‘Mary’]; export const