Day 12: Mastering JavaScript Objects With Real-World Examples 🤩
👋 “Hey, everyone! Welcome back to Day 12 of the "40 Days of JavaScript.". Today, we’re diving into understanding JavaScript Objects and their manipulations. This is one of the most fundamental topics of JavaScript to understand more complex topics and logic building using data structures.
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Timecodes
0:00 - Welcome To Day 12
00:42 - What Will We Cover?
02:18 - JavaScript Objects
03:25 - Create Objects with Literal Syntax
05:14 - Accessing Object Properties
06:07 - Adding New Property to Object
06:55 - Keys With Special Characters
10:06 - Modifying Existing Property Value
10:55 - Deleting a Key From Object
11:45 - Accessing Dynamic Key Value
14:41 - Create Object With Dynamic Values
17:02 - Constructor Function To Create Objects
23:17 - Using Object Constructor
24:27 - Using Factory Function
26:47 - Object Shorthand
27:49 - Object Methods
31:47 - Nested Objects
33:59 - The “in” operator
37:26 - The for…in loop
39:19 - Object.keys() method
40:17 - Object References
44:29 - B.R.E.A.K
45:20 - Object.assign()
48:39 - Shallow Copy vs. Deep Copy
55:01 - Convert an Object to an Array
56:13 - Concert Map or Array to Object
57:35 - Immutability with freeze()
59:14 - Immutability with seal()
01:01:53 - The hasOwn() Method
01:03:06 - What is Object Destructuring?
01:06:58 - Create a New Variable
01:10:00 - Aliases
01:12:09 - Nested Object Destructuring
01:14:13 - Destructuring to Function Parameter
01:17:21 - Destructure a Function Return Value
01:19:20 - Destructuring in Loops
01:21:18 - Optional Chaining
01:25:04 - Are You Tired?
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