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How do you represent a JSON array of strings?
...t accepts single quotes ', JSON only takes double ones ".
[ will start an array:
[value, value]
Hint: spaces among elements are always ignored by any JSON parser.
And value is an object, array, string, number, bool or null:
So yeah, ["a", "b"] is a perfectly valid JSON, like you could try on t...
Why is char[] preferred over String for passwords?
...) you can get rid of the data before garbage collection kicks in.
With an array, you can explicitly wipe the data after you're done with it. You can overwrite the array with anything you like, and the password won't be present anywhere in the system, even before garbage collection.
So yes, this is...
Java dynamic array sizes?
I have a class - xClass, that I want to load into an array of xClass so I the declaration:
18 Answers
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How to create a jQuery plugin with methods?
...dOrOptions] ) {
return methods[ methodOrOptions ].apply( this, Array.prototype.slice.call( arguments, 1 ));
} else if ( typeof methodOrOptions === 'object' || ! methodOrOptions ) {
// Default to "init"
return methods.init.apply( this, arguments );
...
Get the first N elements of an array?
...
Use array_slice()
This is an example from the PHP manual: array_slice
$input = array("a", "b", "c", "d", "e");
$output = array_slice($input, 0, 3); // returns "a", "b", and "c"
There is only a small issue
If the array i...
Simple way to create matrix of random numbers
... rand(d0, d1, ..., dn)
Random values in a given shape.
Create an array of the given shape and propagate it with random
samples from a uniform distribution over [0, 1).
>>> import numpy as np
>>> np.random.rand(2,3)
array([[ 0.22568268, 0.0053246 , 0.41282024],
...
How to sort an array of objects by multiple fields?
...oved by preprocessing the argument list and create a uniform "sort options array". This is left as exercise for the reader ;)
– Felix Kling
Aug 5 '11 at 13:38
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Fastest way to implode an associative array with keys
I'm looking for a fast way to turn an associative array in to a string. Typical structure would be like a URL query string but with customizable separators so I can use ' & ' for xhtml links or ' & ' otherwise.
...
Why would $_FILES be empty when uploading files to PHP?
...upload any file from a form, it seems to upload, but in PHP, the $_FILES array is empty. There is no file in the c:\wamp\tmp folder. I have configured php.ini to allow file uploads and such. The tmp folder has read/write privileges for the current user. I'm stumped.
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Reordering arrays
Say, I have an array that looks like this:
11 Answers
11
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