Day 15: JavaScript Array Master Course - Beginner to PRO 🤩

Published: 30 March 2025
on channel: tapaScript by Tapas Adhikary
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👋 “Hey, everyone! Welcome back to Day 15 of the "40 Days of JavaScript.". Today, we’re diving into Arrays. It is not like any other regular session or video. It is a complete master course! Master JavaScript Array concept like a PRO with every concept explained with examples and real-world use cases.

At the end, you will find the tasks and interview questions to make your learning even more solid.

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Timecodes
0:00 - Array Master Course
01:02 - How To Take It?
02:41 - What Will We Learn?
05:05 - What is an Array?
07:42 - How to Create Arrays?
15:29 - How to Access Elements From an Array?
19:12 - Adding Elements To Array: push() & unshift()
23:04 - Removing Elements From Array: pop() & shift()
26:27 - Clone or Copy Arrays: slice()
28:37 - Determine Array
30:09 - Array Destructuring
35:40 - Assign a Default Value
37:40 - Skipping a Value
39:10 - Nested Array
40:49 - Nested Array Destructuring
43:39 - Rest Parameter & Spread Operator
48:36 - Destructuring Use Case - Swap
50:43 - Destructuring Usercase - Merge
52:14 - The Array Length
56:36 - B.R.E.A.K & What’s Next?
57:15 - The concat() Method
59:07 - The join() Method
01:01:15 - The fill() Method
01:05:19 - The includes() Method
01:06:33 - The indexOf() Method
01:08:09 - The lastIndexOf() Method
01:09:11 - The reverse() Method
01:10:26 - The sort() Method
01:17:35 - The splice() Method
01:25:12 - The at() Method
01:27:52 - The copyWithin() Method
01:31:29 - The flat() Method
01:34:21 - Grouping Data
01:40:34 - Immutability
01:43:53 - The toReversed() Method
01:45:06 - The toSorted() Method
01:46:07 - The toSpliced() Method
01:48:41 - The with() Method
01:54:12 - B.R.E.A.K & What’s Next?
01:54:45 - Array-Like and Usages
02:03:03 - Array-Like to Array
02:05:08 - Array.from() Static Method
02:06:47 - Array.fromAsync() Static Method
02:11:30 - Array.of() Static Method
02:13:17 - B.R.E.A.K & What’s Next?
02:13:47 - The filter() Method
02:20:22 - The map() Method
02:26:52 - The reduce() Method
02:38:00 - The reduceRight() Method
02:40:14 - The some() Method
02:43:44 - The every() Method
02:45:38 - The find() Method
02:47:20 - the findIndex() findLastIndex() findLast() Methods
02:50:07 - Chaining Array Methods
02:56:53 - The forEach() Method
02:59:05 - The entries() Method
03:02:28 - The values() Method
03:03:45 - the flatMap() Method
03:07:09 - Task & The End…

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