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Check existence of input argument in a Bash shell script
...X acceptable. [ -z "$1" ] && echo "No argument supplied" I prefer one-liners, as they are easier for me; and it's also faster to check exit value, compared to using if
– J. M. Becker
Jun 2 '12 at 20:38
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Why does CSS not support negative padding?
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Eh, it's a reason, but I wouldn't call it a satisfactory one. This is a case where the spec goes beyond telling me how to define my page and starts telling me how I should define my page. If I want my content to overlap my background edges, borders and/or margins, that should be ...
Fast way of counting non-zero bits in positive integer
...ual to the number of bits set in the bucket (0 if no bits are set and 1 if one bit is set). The first transformation results in an analogous state, but with 32 buckets each 2-bit long. This is achieved by appropriately shifting the buckets and adding their values (one addition takes care of all buck...
Is there a setting on Google Analytics to suppress use of cookies for users who have not yet given c
...cs tracking requires opt-in mechanisms for compliance. If you're concerned one way or another, consult an attorney. Google is empowering you to make the decision as to how you want to proceed.
They'll leave implementation details to you, but, the idea is, once you've determined whether or not to tr...
Serialize form data to JSON [duplicate]
I want to do some pre-server-validation of a form in a Backbone.js model. To do this I need to get the user input from a form into usable data.
I found three methods to do this:
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Converting many 'if else' statements to a cleaner approach [duplicate]
...er" even though the newer code shares the same disadvantages, than the old one.
– Tom
Oct 11 '15 at 17:03
1
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Angular IE Caching issue for $http
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This worked for my local GET requests, but it caused the one CORS request I was making to start using the OPTIONS method instead of the GET method. The 3rd party server doesn't support the OPTIONS method, so my workaround is to use jQuery.get() to make that request and use $scope.a...
jQuery Determine if a matched class has a given id
...Note that it won't apply to all #foo elements (though there should only be one), and it won't apply to all .bar elements (though there may be many). It will only reference elements that qualify on both attributes.
jQuery also has a great .is method that lets your determine whether an element has ce...
Run git pull over all subdirectories [duplicate]
...ory
-type d to find directories, not files
-depth 1 for a maximum depth of one sub-directory
-exec {} \; runs a custom command for every find
git --git-dir={}/.git --work-tree=$PWD/{} pull git pulls the individual directories
To play around with find, I recommend using echo after -exec to preview,...
When and why to 'return false' in JavaScript?
...lse is deprecated and doesn't always work anymore.
– onetwopunch
Mar 24 '14 at 21:32
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Sometimes ...