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18

To insert multiple items you can use Array.prototype.insert = function (index, items) { this.splice.apply(this, [index, 0].concat(items)); }

Ryan Smith
– Ryan Smith

2014-05-30 12:15:29 +00:00
Commented May 30, 2014 at 12:15
12

The problem with adding stuff to array is that the function will show up as an element when you do for(i in arr) {...}

rep_movsd
– rep_movsd

2014-07-02 09:38:55 +00:00
Commented Jul 2, 2014 at 9:38
29

But keep in mind that it's not recommended to extend native types since it might interfere with other code or future functionality.

marsze
– marsze

2018-08-21 09:48:13 +00:00
Commented Aug 21, 2018 at 9:48
107

Don’t modify objects you don’t own

Parzibyte
– Parzibyte

2019-02-19 18:09:25 +00:00
Commented Feb 19, 2019 at 18:09
44

Don't modify prototypes

satya164
– satya164

2019-05-31 12:54:20 +00:00
Commented May 31, 2019 at 12:54

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Correct minor typos or mistakes
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create code fences with backticks ` or tildes ~
```
like so
```
add language identifier to highlight code
```python
def function(foo):
print(foo)
```
put returns between paragraphs
for linebreak add 2 spaces at end
_italic_ or **bold**
indent code by 4 spaces
backtick escapes `like _so_`
quote by placing > at start of line
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[example](https://example.com)

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