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Locking a file in Python
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As noted by a comment at the blog post, this solution isn't "perfect", in that it's possible for the program to terminate in such a way that the lock is left in place and you have to manually delete the lock before the file becomes accessi...
stopPropagation vs. stopImmediatePropagation
..."background-color", "#f00");
});
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<p>example</p>
Note that the order of the event binding is important here!
$("p").click(function(event) {
// This function will now tr...
How can I shift-select multiple checkboxes like GMail?
...lastChecked = this;
});
});
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<html>
<head>
</head>
<body>
<input type="checkbox" id="id_chk1" class="chkbox" value="1" />Check 1<br/>
<input...
What's the fastest way to convert String to Number in JavaScript?
...By this quick test I made, it actually depends on browsers.
http://jsperf.com/best-of-string-to-number-conversion/2
Implicit marked the fastest on 3 browsers, but it makes the code hard to read… So choose whatever you feel like it!
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JavaScript function in href vs. onclick
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What is the difference between visibility:hidden and display:none?
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No comment about performance of one and another? I'm curious which method to use to hide absolutely positioned elements, that get displayed and hidden often.
– Tomáš Zato - Reinstate Monica
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Can you use a trailing comma in a JSON object?
...y generating a JSON object or array, it's often easier to leave a trailing comma on the last item in the object or array. For example, code to output from an array of strings might look like (in a C++ like pseudocode):
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How to make a div 100% height of the browser window
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What are Viewport-Percentage Lengths?
From the linked W3 Candidate Recommendation above:
The viewport-percentage lengths are relative to the size of the initial containing block. When the height or width of the initial containing block is changed, they are scaled accordingly.
These units...
python multithreading wait till all threads finished
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