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How to get an element's top position relative to the browser's viewport?

..., and does exactly what the question asks for. Plus it is supported across all browsers (including IE 5, it seems!) From MDN page: The returned value is a TextRectangle object, which contains read-only left, top, right and bottom properties describing the border-box, in pixels, with the top-left r...
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Is there a difference between /\s/g and /\s+/g?

...eans "one or more spaces". But, because you're using the /g flag (replace all occurrences) and replacing with the empty string, your two expressions have the same effect. share | improve this answe...
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vim and NERD Tree extension - adding a file

... Any way to save a step, and automatically open the created file? Use the create option all the time, but 90% of time wish to start editing the file in a new buffer right after creation. – arcseldon Jan 27 '18 at 0:02 ...
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Compare version numbers without using split function

... this won't work with a 5-part version string like you've shown (is that really your version string?). Assuming your inputs are strings, here's a working sample with the normal .NET 4-part version string: static class Program { static void Main() { string v1 = "1.23.56.1487"; ...
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How can I detect whether an iframe is loaded?

...y on("load"). (Unfortunately, the docs don't quite make clear that that's all you need to do.) – Teepeemm Oct 5 '14 at 0:25 1 ...
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Parse rfc3339 date strings in Python? [duplicate]

I have a datasets where all the dates have the following format: 3 Answers 3 ...
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Difference between pre-increment and post-increment in a loop?

...crementtResult == 3 ); Assert( i == 4 ); In C++, the pre-increment is usually preferred where you can use either. This is because if you use post-increment, it can require the compiler to have to generate code that creates an extra temporary variable. This is because both the previous and new valu...
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How can I remove the first line of a text file using bash/sed script?

...(which comes with OS X by default). When I switched to GNU tail, the tail call was 10 times faster than the sed call (and the GNU sed call, too). AaronDigulla is correct here, if you're using GNU. – Dan Nguyen Aug 18 '16 at 20:59 ...
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how to know if the request is ajax in asp.net mvc?

... All AJAX calls made by jQuery will have a header added to indicate it is AJAX. The header to check is X-Requested-With, and the value will be XMLHttpRequest when it is an AJAX call. Note that AJAX requests are normal GETs or...
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What is Express.js?

...deling) to provide a backend for your Node.js application. Express.js basically helps you manage everything, from routes, to handling requests and views. Redis is a key/value store -- commonly used for sessions and caching in Node.js applications. You can do a lot more with it, but that's what I'm ...