Ian Schoonover nax3t

Understanding 'this' and Function Binding in JavaScript

A Beginner's Guide

1. What is 'this'?

Let's start with the most important (and confusing) concept: the this keyword. In JavaScript, this refers to the current execution context - basically, who's running the code right now.

// Example 1: 'this' in a regular object
const person = {
 name: "Alice",

	// docs: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/every
	const phrases = [
	"I LOVE PIZZA",
	"WHY IS THE SKY BLUE?!",
	"WHERE AM I?",
	];

	function isYelled(phrase) {
	return phrase.toUpperCase() === phrase;
	}