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Rev

Maybe I can change Function.constructor function so every returned function will have your wrapper around it.
– yilmazhuseyin
Commented Aug 4, 2010 at 14:36
2

@yilmazhuseyin: no, you can't. Changing the Function constructor would only allow you to override functions created with new Function(str).
– Andy E
Commented Aug 4, 2010 at 14:49
yes you are right. function newConstructor(){alert("a");}; Function.prototype.constructor = newConstructor; did not work.
– yilmazhuseyin
Commented Aug 4, 2010 at 14:56
1

It's worth noting that someFunction in your example is the function you wish to intercept/extend. I had it backward when I first tried this but eventually figured out I was reading this wrong. Great example besides that.
– Dan
Commented Aug 14, 2014 at 22:42
I wanted to inject an function before another one and I needed to know about this and Function.prototype.call to pass the correct this to my hooked function. developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/…
– Motomotes
Commented Mar 25, 2015 at 3:20

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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
to make links (use https whenever possible)
<https://example.com>
[example](https://example.com)
<a href="https://example.com">example</a>

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