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How can I read large text files in Python, line by line, without loading it into memory?
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@rochacbruno, it only reads one line at a time. When the next line is read, the previous one will be garbage collected unless you have stored a reference to it somewhere else
– John La Rooy
Jun 25 '11 at 2:33
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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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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
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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 $scope.a...
In Git, what is the difference between origin/master vs origin master?
...ee things here: origin master is two separate things, and origin/master is one thing. Three things total.
Two branches:
master is a local branch
origin/master is a remote branch (which is a local copy of the branch named "master" on the remote named "origin")
One remote:
origin is a remote
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jQuery Determine if a matched class has a given id
...Note that it won't apply to all #foo elements (though there should only be one), and it won't apply to all .bar elements (though there may be many). It will only reference elements that qualify on both attributes.
jQuery also has a great .is method that lets your determine whether an element has ce...
Run git pull over all subdirectories [duplicate]
...ory
-type d to find directories, not files
-depth 1 for a maximum depth of one sub-directory
-exec {} \; runs a custom command for every find
git --git-dir={}/.git --work-tree=$PWD/{} pull git pulls the individual directories
To play around with find, I recommend using echo after -exec to preview,...
Get unique values from a list in python [duplicate]
...hy lists have '.append' and sets have '.add' ??
– Antonello
Jan 28 '14 at 11:05
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"append" means...
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 ...