#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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#33 Maps and Weak Maps | JavaScript Full Tutorial

 

In this lesson we're going to be learning all about Maps and Weak Maps. Maps are basically a collection of key data items, similar to an Object. The main difference between a Map and an object is that a Map allows keys of any type. In this lesson we learn about how to create and use Maps.

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#32 Sets and Weak Sets | JavaScript Full Tutorial

 

In this lesson we're going to be learning all about Sets and Weak Sets. Sets are similar to Arrays except you can't have any duplicates. In this lesson we look at how to create and use them. 0:00 - Intro 0:35 - What is a Set? 1:32 - Creating a Set 1:42 - Adding values to a Set 3:10 - Deleting values in a Set 3:34 - Checking values in a Set 4:08 - Get number of values in a Set 4:21 - Clear all values in a Set 4:45 - Adding an Array to a Set 5:23 - What is a Weak Set? 5:48 - Creating a Weak Set 7:28 - Lesson Summary 7:57 - Lesson Tasks 9:35 - Coming up next/Outro

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#31 JS Array Iterator Methods | JavaScript Full Tutorial

 

In this lesson we'll learn all about array iterator methods, we use iterator methods to loop over our array values and perform an action in the form of a function. Iterator methods are really important to know, as they can be used to do a variety of different things with arrays. 0:00 - Intro 0:25 - What are iterator methods? 0:41 - forEach() method 3:14 - map() method 6:31 - filter() method 8:03 - reduce() method 9:46 - some() method 11:24 - every() method 12:30 - find() method 13:45 - findIndex() method 14:54 - Lesson Tasks 18:00 - Coming up next/Outro

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#30 How to use JS Array Methods | JavaScript Full Tutorial

 

In this lesson let's learn all about the various Array methods. Array methods enable us to do some really cool things with arrays, for e.g. we can use these methods to find certain values in our array, and to even add, delete and change values in our array.

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