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What is the difference between 0.0.0.0, 127.0.0.1 and localhost?

I am using Jekyll and Vagrant on my mac. I found that Jekyll server will bind to 0.0.0.0:4000 instead of 127.0.0.1:4000 . Also gem server will bind to this address by default. I can still visit it via http://localhost:port . But for Jekyll , it seems that the default setting (e.g. 0.0....
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Reading a binary file with python

...particularly difficult reading binary file with Python. Can you give me a hand? I need to read this file, which in Fortran 90 is easily read by ...
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Escaping a forward slash in a regular expression

My question is a simple one, and it is about regular expression escaping. Do you have to escape a forward slash / in a regular expression? And how would you go about doing it? ...
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Express-js wildcard routing to cover everything under and including a path

...o me as well. Unfortunately: passing an array to app.VERB() is deprecated and will be removed in 4.0 – CodeWarrior Jul 26 '13 at 16:36 10 ...
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Determine if ActiveRecord Object is New

... postfix: "", imageUploader: { brandingHtml: "Powered by \u003ca href=\"https://imgur.com/\"\u003e\u003csvg class=\"svg-icon\" width=\"50\" height=\"18\" viewBox=\"0 0 50 18\" fill=\"none\" xmlns=\"http://www.w3.org/2000/svg\"\u003e\u003cpath d=\"M46.1709 9....
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How can I ignore everything under a folder in Mercurial

... I did some experiments and I found that the regex syntax on Windows applies to the path starting with the current repository, with backslashes transformed to slashes. So if your repository is in E:\Dev for example, hg status will apply the pattern...
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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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How much space can your BitBucket account have?

I created a BitBucket account today, and I love the fact that they allow you to have unlimited public/private repositories. However, I didn't find the size limit of your account? Does anyone know where to find it? Github offered 300mb if I remember correctly. ...
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LINQ Group By into a Dictionary Object

...okup(customObject => customObject); Basically, it takes the IGrouping and materializes it for you into a dictionary of lists, with the values of PropertyName as the key. share | improve this an...
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How can I access an internal class from an external assembly?

... Without access to the type (and no "InternalsVisibleTo" etc) you would have to use reflection. But a better question would be: should you be accessing this data? It isn't part of the public type contract... it sounds to me like it is intended to be trea...