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How do I select the “last child” with a specific class name in CSS? [duplicate]
...iple classes to an element like so:
<ul>
<li class="list">test1</li>
<li class="list">test2</li>
<li class="list last">test3</li>
<li>test4</li>
</ul>
The last element has the list class like its siblings but also has the...
How can I determine if a variable is 'undefined' or 'null'?
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I'm trying to test if event is null in firefox and an error blocks the execution: "event is undefined"
– Entretoize
Sep 6 '18 at 10:32
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How to check if a file is a valid image file?
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That won't be sufficient if he's really testing for "valid" images; the presence of a magic number doesn't guarantee that the file hasn't been truncated, for example.
– Ben Blank
May 20 '09 at 18:11
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Batch files - number of command line arguments
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Have tested this out to 2500 arguments as a function and used it to define arrays of same size. Dont ask me why exactly. Mostly just learning what batch is capable of.
– T3RR0R
Jan 4 at 12:56...
Convert XML to JSON (and back) using Javascript
...Sample:// XML string to JSON var xmlText = "<MyOperation><test>Success</test><test2><item>ddsfg</item><item>dsdgfdgfd</item></test2></MyOperation>"; var jsonObj = X2JS.xml_str2json( xmlText ); alert (jsonObj.MyOperation.test...
Create folder with batch but only if it doesn't already exist
...e a directory only if the folder does not exist.
Note that this existence test will return true only if VTS exists and is a directory. If it is not there, or is there as a file, the mkdir command will run, and should cause an error. You might want to check for whether VTS exists as a file as well...
Call js-function using JQuery timer
...window.setInterval(yourfunction, 10000);
function yourfunction() { alert('test'); }
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How to configure Ruby on Rails with no database?
... yes, this works with Rails 4 :) - just validated. If you want to ditch test unit use: rails new myApp-O --skip-bundle -T
– Chris Hough
Oct 8 '13 at 7:01
1
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Make a DIV fill an entire table cell
...lowing code works on IE 8, IE 8's IE 7 compatibility mode, and Chrome (not tested elsewhere):
<table style="width:100px"> <!-- Not actually necessary; just makes the example text shorter -->
<tr><td>test</td><td>test</td></tr>
<tr>
&...
Performance of foreach, array_map with lambda and array_map with static function
...osure was caused by the closure possibly being evaluated each time, I also tested like this:
function useMapClosure($numbers) {
$closure = function($number) {
return $number * 10;
};
return array_map($closure, $numbers);
}
But the results are identical, confirming that the closure is ...