#39 Understanding JavaScript Scope | JavaScript Full Tutorial

 

In this lesson we learn all about JavaScript Scope, understanding scope is a really important part of learning JavaScript, in this lesson we'll do a deep dive and cover global scope, local scope, functional scope and block scope, we'll also see how these all relate to the differences between var, let and const. 0:00 - Intro 0:42 - What is Scope? 1:21 - Global Scope 2:35 - Local Scope 7:27 - Functional Scope 9:20 - Block Scope 11:29 - Lesson Summary 12:19 - Lesson Tasks 15:30 - Outro and Up Next

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#38. How to use Var, Let and Const | JavaScript Full Tutorial

 

Let's learn all about the difference between var, let and const. Why do we have three different ways to declare a variable? When is the right time to use either one? In this important lesson we discuss the difference between the different ways to create a variable, and why/when to either use or not use them. 0:00 - Intro 0:20 - The old 'var' keyword 1:37 - Main differences between var, let, const 2:16 - Reassignment 3:38 - Redeclaration 4:34 - Why the change? 5:30 - Lesson Summary 6:02 - Lesson Tasks 8:09 - Outro and Up Next

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#37 How to use JS return | JavaScript Full Tutorial

 

Let's learn all about the function return keyword, what is it used for? In this lesson we continue our JS tutorial by looking at the function return keyword and it's use. 0:00 - Intro 0:25 - What is the return keyword? 2:19 - Using multiple returns 4:20 - Lesson Summary 5:07 - Lesson Tasks 8:03 - Outro and what's up next

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#36 What are Parameters and Arguments? | JavaScript Full Tutorial

 

In this lesson we're going to learn all about Function Parameters and Arguments, Function parameters and arguments make our functions dynamic, in this lesson we learn all about how to use them, we also take a look at the arguments keyword. 0:00 - Intro 0:29 - What are Parameters and Arguments? 3:29 - Using multiple Parameters 6:23 - Using multiple Arguments 6:56 - The arguments keyword 9:00 - Using Default Parameters 11:42 - Lesson summary 12:40 - Lesson Tasks 15:19 - Outro and up next

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#35 JS Function Expressions | JavaScript Full Tutorial

 

In this lesson we're going to learn about Function Expressions, Function expressions are syntactically similar to function declarations, except we can omit the function name. There are also some key differences between function declarations and expressions, which we'll discuss in this lesson. 0:00 - Intro 0:30 - What are Function Expressions? 1:17 - Writing a Function Expression 2:45 - Naming a Function Expression 4:17 - Reassigning a Function Expression 5:02 - When can Functions be invoked? 6:39 - Lesson Summary 7:02 - Tasks 8:30 - Outro

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#34 What are JS Functions? | JavaScript Full Tutorial

 

In this introductory lesson to JavaScript functions, we look at what functions are and what they're used for. We also look at the four different ways that functions can be created, starting with function declarations in this lesson. Functions are an integral part to mastering JavaScript and we start that journey here. 0:00 - Intro | Like and Sub! 0:45 - Objects and Functions 1:21 - What are Functions? 1:59 - 4 Ways to create Function 3:02 - Writing a Function 4:17 - Invoking a Function 6:30 - Local variables 7:29 - Global variables 8:29 - Anonymous Functions and the DOM 10:48 - Lesson Summary 11:51 - Tasks 13:16 - Outro | Like and Sub!

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