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Concatenate strings in Less

... Thanks, i just came across the same problem and missed that in the docs. – David May 3 '12 at 18:24 ...
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Rails: where does the infamous “current_user” come from?

I've been looking around recently into Rails and notice that there are a lot of references to current_user . Does this only come from Devise? and do I have to manually define it myself even if I use Devise? Are there prerequisites to using current_user (like the existence of sessions, users, etc)...
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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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extract part of a string using bash/cut/split

...om the end So # means match from the beginning (think of a comment line) and % means from the end. One instance means shortest and two instances means longest. You can get substrings based on position using numbers: ${MYVAR:3} # Remove the first three chars (leaving 4..end) ${MYVAR::3} # Retu...
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Suppress echo of command invocation in makefile?

...le which when invoked as make run > outputFile should run the program and write the output to a file, which has a SHA1 fingerprint identical to the one given in the spec. ...
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The order of keys in dictionaries

...e who expected OrderedDict to return arbitrary insertions in sorted order, and so I felt I should point this out. – Hugh Bothwell Apr 12 '11 at 1:32 add a comment ...
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Changing three.js background to transparent or other color

... For transparency, this is also mandatory: renderer = new THREE.WebGLRenderer( { alpha: true } ) via Transparent background with three.js share | improve th...
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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 return raw string with ApiController?

... full control over the Content. In your case you might use a StringContent and specify the correct content type: public HttpResponseMessage Get() { return new HttpResponseMessage() { Content = new StringContent( "<strong>test</strong>", Encoding....
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Conditions for automatic generation of default/copy/move ctor and copy/move assignment operator?

... compiler typically auto generates a default constructor, copy constructor and assignment operator. 3 Answers ...