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What is JSON and why would I use it?
...ipt object you must first parse it, var x = JSON.parse('{"x":"y"}');, x is now an object but this is not JSON anymore.
See Javascript object Vs JSON
When working with JSON and JavaScript, you may be tempted to use the eval function to evaluate the result returned in the callback, but this is not...
How to select bottom most rows?
... I couldn't see the difference between yours and the order by answers, but now I can. So +1.
– RichardOD
Dec 9 '09 at 20:52
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How to repair a serialized string which has been corrupted by an incorrect byte count length?
...ce) it's deprecated - better use preg_replace_callback:
Edit: New Version now not just wrong length but it also fix line-breaks and count correct characters with aczent (thanks to mickmackusa)
// New Version
$data = preg_replace_callback('!s:\d+:"(.*?)";!s', function($m) { return "s:" . strlen($m[...
How to extract img src, title and alt from html using php? [duplicate]
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EDIT : now that I know better
Using regexp to solve this kind of problem is a bad idea and will likely lead in unmaintainable and unreliable code. Better use an HTML parser.
Solution With regexp
In that case it's better to split...
How to make the 'cut' command treat same sequental delimiters as one?
...ed any variable) can also be used more than once in a single read command, if we don't care what goes into it. It can be anything, it is just that it somehow became standard instead of junk_var or whatever :)
– fedorqui 'SO stop harming'
Nov 15 '17 at 7:37
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How to get disk capacity and free space of remote computer
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If you want to round the display to only show whole numbers, use [Math]::Round($Disk.Freespace / 1GB)
– user4317867
Sep 24 '16 at 19:50
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Reference - What does this error mean in PHP?
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Warning: Cannot modify header information - headers already sent
Happens when your script tries to send an HTTP header to the client but there already was output before, which resulted in headers to be already sent to the client.
This is an E...
How to determine the encoding of text?
I received some text that is encoded, but I don't know what charset was used. Is there a way to determine the encoding of a text file using Python? How can I detect the encoding/codepage of a text file deals with C#.
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MySql export schema without data
I'm using a MySql database with a Java program, now I want to give the program to somebody else.
13 Answers
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Getting a better understanding of callback functions in JavaScript
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You can just say
callback();
Alternately you can use the call method if you want to adjust the value of this within the callback.
callback.call( newValueForThis);
Inside the function this would be whatever newValueForThis is.
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