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How can I add new array elements at the beginning of an array in Javascript?
...ments from an array will also have the ability to unshift/shift (sometimes called push_front/pop_front) elements, you should never have to implement these yourself.
As pointed out in the comments, if you want to avoid mutating your original array, you can use concat, which concatenates two or mor...
Cross cutting concern example
...uently used in distributed applications to aid debugging by tracing method calls. Suppose we do logging at both the beginning and the end of each function body. This will result in crosscutting all classes that have at least one function.
(Courtesy)
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How to use Chrome's network debugger with redirects
... page is loaded. This makes it very difficult to debug pages that automatically reload for one reason or another (running script or 300 responses).
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When does invoking a member function on a null instance result in undefined behavior?
...a) and (b) result in undefined behavior. It's always undefined behavior to call a member function through a null pointer. If the function is static, it's technically undefined as well, but there's some dispute.
The first thing to understand is why it's undefined behavior to dereference a null poi...
Is MATLAB OOP slow or am I doing something wrong?
... answer is: yes, MATLAB's OOP is kind of slow. There is substantial method call overhead, higher than mainstream OO languages, and there's not much you can do about it. Part of the reason may be that idiomatic MATLAB uses "vectorized" code to reduce the number of method calls, and per-call overhead ...
What's a redirect URI? how does it apply to iOS app for OAuth2.0?
...spot.se/2012/08/oauth-20-for-my-ninth-grader.html
The redirect URI is the callback entry point of the app. Think about how OAuth for Facebook works - after end user accepts permissions, "something" has to be called by Facebook to get back to the app, and that "something" is the redirect URI. Furthe...
Save current directory in variable using Bash?
...if I change to another dir this updates the cwd variable too. Like if it's calling the pwd function each time... dpaste.de/Kn7F How can I avoid that?
– tutuca
Nov 28 '13 at 16:00
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download file using an ajax request
...me JavaScript to test if download is supported and if not, switching it to call window.location.
Original answer
You can't have an AJAX request open the download prompt since you physically have to navigate to the file to prompt for download. Instead, you could use a success function to navigate t...
RESTful Services - WSDL Equivalent
...T world, but I don't understand why. Isn't it always useful to programmatically bind to a definition and create proxy classes instead of manually coding? I don't mean to get into a philosophical debate, just looking for the reason there is no WSDL in REST, or why it is not needed. Thanks.
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Is there a CSS selector by class prefix?
...which can happen with some applications that output class attributes dynamically).
Naturally, this also works in jQuery, as demonstrated here.
The reason you need to combine two attribute selectors as described above is because an attribute selector such as [class*="status-"] will match the follo...