Arrays

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Syntax

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Summary: Arrays in JavaScript are, quite simply, modified Object instances with an advanced prototype, capable of performing a variety of list-related tasks. They were added in ECMAScript 1st Edition, and other prototype methods arrived in ECMAScript 5.1 Edition.

Warning: If a numeric parameter called n is specified in the new Array() constructor, then it will declare an array with n amount of elements, not declare an array with 1 element with the value of n!

console.log(new Array(53)); // This array has 53 'undefined' elements!

That being said, you should always use [] when declaring an array:

console.log([53]); // Much better!

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Arrays:
* Syntax

Table Of Contents
11 Arrays
12 Objects
14 Classes
16 Map
17 Set
24 Loops
27 Date
29 Scope
30 AJAX
35 Cookies
41 JSON
44 Fetch
45 Modules
46 Screen
64 Console
68 Symbols
73 Modals
76 Events
86 Proxy
89 WeakMap
90 WeakSet
102 Tilde