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How can I check whether an array is null / empty?
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ArrayUtils.isNotEmpty(testArrayName) from the package org.apache.commons.lang3 ensures Array is not null or empty
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How to zip a whole folder using PHP
...e created only after closing object
$zip->close();
// Delete all files from "delete list"
foreach ($filesToDelete as $file)
{
unlink($file);
}
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Accessing nested JavaScript objects and arays by string path
... using reduce is an excellent solution (one can also use _.reduce() from the underscore or lodash library)
– Alp
May 22 '14 at 14:51
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Why do Java programmers like to name a variable “clazz”? [closed]
...s of codes have declaration like Class clazz , where does this originate from ? Is this some kind of convention ? I think 'clazz' is not even an English word , has no meaning at all , how can so many programmers name a wrong name coincidentally ?
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Multiple types were found that match the controller named 'Home'
...egistration in areas. Everywhere I look it seems there is a quality answer from Darin :)
– Travis J
May 7 '13 at 19:42
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How to find indices of all occurrences of one string in another in JavaScript?
...ts array...
Edit: adding link
@Tim Down's answer uses the results object from RegExp.exec(), and all my Javascript resources gloss over its use (apart from giving you the matched string). So when he uses result.index, that's some sort of unnamed Match Object. In the MDC description of exec, they...
What are .a and .so files?
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.a are static libraries. If you use code stored inside them, it's taken from them and embedded into your own binary. In Visual Studio, these would be .lib files.
.so are dynamic libraries. If you use code stored inside them, it's not taken and embedded into your own binary. Instead it's just ref...
New line in JavaScript alert box
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When you want to write in javascript alert from a php variable, you have to add an other "\" before "\n".
Instead the alert pop-up is not working.
ex:
PHP :
$text = "Example Text : \n"
$text2 = "Example Text : \\n"
JS:
window.alert('<?php echo $text; ?>'); ...
How to check if a json key exists?
So, I get some JSON values from the server but I don't know if there will be a particular field or not.
13 Answers
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Can you center a Button in RelativeLayout?
... how to manipulate things to do what I want. Basically I want to stay away from aligning things with pixels because the picture could look very different on a different screen type/resolution. However, when you use the gravity command, everything follows it. I tried disabling gravity for a button by...