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What is the difference between null and undefined in JavaScript?

... The comment from Nir O. is very important. If I want to have a variable that has no value in the beginning, I write "... = null", eg "myvar = null". This way - when I mistype "if (myxar == null) {...}" - the if block is not execu...
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How do I capture response of form.submit

...am 100% in favor of using a library to abstract all the ridiculousness and complexity involved in making an AJAX call. – Jason Sep 11 '13 at 21:36 3 ...
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How to add local jar files to a Maven project?

...t;group-id>: the group that the file should be registered under e.g → com.google.code <artifact-id>: the artifact name for the file e.g → kaptcha <version>: the version of the file e.g → 2.3 <packaging>: the packaging of the file e.g. → jar Reference Maven FAQ: I h...
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Format numbers in django templates

...tributed humanize application does this: {% load humanize %} {{ my_num|intcomma }} Be sure to add 'django.contrib.humanize' to your INSTALLED_APPS list in the settings.py file. share | improve th...
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OAuth: how to test with local URLs?

...Previous Answer: Since the callback request is issued by the browser, as a HTTP redirect response, you can set up your .hosts file or equivalent to point a domain that is not localhost to 127.0.0.1. Say for example you register the following callback with Twitter: http://www.publicdomain.com/callbac...
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JavaScript blob filename without link

...is just an example, you could also try the FileSaver.js demo page: eligrey.com/demos/FileSaver.js – kol Oct 13 '13 at 8:57 1 ...
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Bash tool to get nth line from a file

Is there a "canonical" way of doing that? I've been using head -n | tail -1 which does the trick, but I've been wondering if there's a Bash tool that specifically extracts a line (or a range of lines) from a file. ...
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How do I redirect with JavaScript? [duplicate]

... To redirect to another page, you can use: window.location = "http://www.yoururl.com"; share | improve this answer | follow | ...
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What tools are there for functional programming in C?

... & Muller's book, Functional C, can nowadays (2012-01-02) be found at: http://eprints.eemcs.utwente.nl/1077/ (there is a link to PDF version). share | improve this answer | ...
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Servlet returnsHTTP Status 404 The requested resource (/servlet) is not available”

...vlet") // This is the URL of the servlet. public class YourServlet extends HttpServlet { // Must be public and extend HttpServlet. // ... } In case you want to support path parameters like /servlet/foo/bar, then use an URL pattern of /servlet/* instead. See also Servlet and path parameters lik...