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Best way to replace multiple characters in a string?

...ent answers along with one extra. With an input string of abc&def#ghi and replacing & -> \& and # -> \#, the fastest way was to chain together the replacements like this: text.replace('&', '\&').replace('#', '\#'). Timings for each function: a) 1000000 loops, best of 3:...
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Regex to replace multiple spaces with a single space

... string.replace(/\s\s+/g, ' '); If you really want to cover only spaces (and thus not tabs, newlines, etc), do so: string = string.replace(/ +/g, ' '); share | improve this answer | ...
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jQuery and AJAX response header

So I've got this jQuery AJAX call, and the response comes from the server in the form of a 302 redirect. I'd like to take this redirect and load it in an iframe, but when I try to view the header info with a javascript alert, it comes up null, even though firebug sees it correctly. ...
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How to get a DOM Element from a JQuery Selector

... ($(this).is(":checked")) { // do stuff } }); is more "jquery'ish" and (imho) more concise. What if you wanted to number them? $(":checkbox").each(function(i, elem) { $(elem).data("index", i); }); $(":checkbox").click(function() { if ($(this).is(":checked") && $(this).data("inde...
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Easiest way to rename a model using Django/South?

I've been hunting for an answer to this on South's site, Google, and SO, but couldn't find a simple way to do this. 4 Answ...
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URL to load resources from the classpath in Java

... Intro and basic Implementation First up, you're going to need at least a URLStreamHandler. This will actually open the connection to a given URL. Notice that this is simply called Handler; this allows you to specify java -Djava...
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Default implementation for Object.GetHashCode()

How does the default implementation for GetHashCode() work? And does it handle structures, classes, arrays, etc. efficiently and well enough? ...
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Distinct not working with LINQ to Objects

...t smart when it comes to custom objects. All it does is look at your list and see that it has two different objects (it doesn't care that they have the same values for the member fields). One workaround is to implement the IEquatable interface as shown here. If you modify your Author class like s...
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Easiest way to open a download window without navigating away from the page

... 7 years have passed and I don't know whether it works for IE6 or not, but this prompts OpenFileDialog in FF and Chrome. var file_path = 'host/path/file.ext'; var a = document.createElement('A'); a.href = file_path; a.download = file_path.substr...
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numpy matrix vector multiplication [duplicate]

...(b) array([16, 6, 8]) This occurs because numpy arrays are not matrices, and the standard operations *, +, -, / work element-wise on arrays. Instead, you could try using numpy.matrix, and * will be treated like matrix multiplication. Other Solutions Also know there are other options: As no...