Hoisting in JavaScript | (variables & functions)
MindCraft Frontend Web Dev - JS Essential Lecture 4
Course by: MindCraft
In this lecture, we unravel the concept of hoisting in JavaScript, a topic often encountered in interviews and frequently misunderstood. We explore how hoisting operates behind the scenes within the JavaScript engine, particularly focusing on variables and functions.
During the Memory Allocation Phase of Execution Context creation, all variables are assigned a default value of undefined before any code execution begins. This foundational understanding sets the stage for comprehending how hoisting influences variable and function declarations in JavaScript.
Topics Covered:
00:00 - Introduction to Hoisting in JavaScript (with examples)
00:54 - Variable and Function Hoisting in JS
03:02 - Definition of Hoisting
03:52 - Functions Hoisting Behind the Scenes
04:37 - Diving Deep under the hood of the JavaScript code
13:37 - Summary and Interview tip
14:12 - Demo of Call Stack in the Browser
18:23 - Teaser of the next video - How functions work in JavaScript?
18:38 - Thank you for watching Namaste JavaScript
Gain a comprehensive understanding of hoisting and enhance your JavaScript proficiency with this detailed tutorial!