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How can I add or update a query string parameter?

... @JarónBarends - Tweak value check to check against undefined and null to allow setting 0 values Third Update There was a bug where removing a querystring variable directly before a hashtag would lose the hashtag symbol which has been fixed Fourth Update Thanks @rooby for pointing out a regex o...
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How do I setup a SSL certificate for an express.js server?

... Other options for createServer are at: http://nodejs.org/api/tls.html#tls_tls_createserver_options_secureconnectionlistener share | improve this answer | follow ...
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How to update Python?

I have version 2.7 installed from early 2012. I can't find any consensus on whether I should completely uninstall and wipe this version before putting on the latest version. ...
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Django - how to create a file and save it to a model's FileField?

...nt to have a look at FileField and FieldFile in the Django docs, and especially FieldFile.save(). Basically, a field declared as a FileField, when accessed, gives you an instance of class FieldFile, which gives you several methods to interact with the underlying file. So, what you need to do is: s...
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Sorting a tab delimited file

...u probably want sort -k4nr file.txt to sort file.txt by column 4 numerically in reverse order. (Though the data in the question has even 5 fields so the last field would be index 5.) share | impr...
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Representing Directory & File Structure in Markdown Syntax [closed]

...se ASCII to build the structures, so your example structure becomes . +-- _config.yml +-- _drafts | +-- begin-with-the-crazy-ideas.textile | +-- on-simplicity-in-technology.markdown +-- _includes | +-- footer.html | +-- header.html +-- _layouts | +-- default.html | +-- post.html +-- _po...
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How are booleans formatted in Strings in Python?

...False) True, False This is not specific to boolean values - %r calls the __repr__ method on the argument. %s (for str) should also work. share | improve this answer | foll...
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What Every Programmer Should Know About Memory?

.... So, any book or article that describes something fundamental cannot be called outdated. "What every programmer should know about memory" is definitely worth to read, but, well, I don't think it's for "every programmer". It's more suitable for system/embedded/kernel guys. ...
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Can an Option in a Select tag carry multiple values?

... I was actually wondering this today, and I achieved it by using the php explode function, like this: HTML Form (in a file I named 'doublevalue.php': <form name="car_form" method="post" action="doublevalue_action.php"> ...
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Where is JAVA_HOME on macOS Mojave (10.14) to Lion (10.7)?

... With the Java optional package or Oracle JDK installed, adding one of the following lines to your ~/.bash_profile file will set the environment variable accordingly. export JAVA_HOME="$(/usr/libexec/java_home -v 1.6)" or export JAVA_HOME="$(/usr/libexec/java_home -v 1.7)...