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How to get a DOM Element from a JQuery Selector

... ($(this).is(":checked")) { // do stuff } }); is more "jquery'ish" and (imho) more concise. What if you wanted to number them? $(":checkbox").each(function(i, elem) { $(elem).data("index", i); }); $(":checkbox").click(function() { if ($(this).is(":checked") && $(this).data("inde...
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How to undo a git pull?

...s. To the commenter ORIG_HEAD is previous state of HEAD, set by commands that have possibly dangerous behavior, to be easy to revert them. It is less useful now that Git has reflog: HEAD@{1} is roughly equivalent to ORIG_HEAD (HEAD@{1} is always last value of HEAD, ORIG_HEAD is last value of ...
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How do I match any character across multiple lines in a regular expression?

... and what if i wanted just a new line and not all characters ? – Grace Apr 11 '11 at 12:02 3 ...
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How to use Sphinx's autodoc to document a class's __init__(self) method?

...be skipped (which it is by default). This configuration is specified once, and it does not require any additional markup for every class in the .rst source. The special-members option was added in Sphinx 1.1. It makes "special" members (those with names like __special__) be documented by autodoc. S...
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Can I specify multiple users for myself in .gitconfig?

... You can manually edit those config files with git config --edit and git config --global --edit. And in case you missed Abizern’s comment, a repository’s config file is at <repo-root>/.git/config. – Rory O'Kane Apr 25 '12 at 20:01 ...
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Return multiple columns from pandas apply()

I have a pandas DataFrame, df_test . It contains a column 'size' which represents size in bytes. I've calculated KB, MB, and GB using the following code: ...
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What is meant by 'first class object'?

...them in data structures, passing them as arguments to other functions, and returning them as the values of other functions. This page also illustrates it beautifully: Really, just like any other variable A function is an instance of the Object type A function can have properties and...
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How to determine if a decimal/double is an integer?

... IMHO, the modulus operator and floating point numbers just don't mix in any way useful. The code suggested is incredibly confusing given the number of keystrokes used and will work almost nowhere outside of .NET languages. I would bet it's also much sl...
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Minimum and maximum value of z-index?

...r>) or real number values (denoted by <number>). Real numbers and integers are specified in decimal notation only. An <integer> consists of one or more digits "0" to "9". A <number> can either be an <integer>, or it can be zero or more digits followed by a ...
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PHP: How to check if image file exists?

.../'.$filename)) { … } Also, make sure $filename is properly validated. And then, it will only work when allow_url_fopen is activated in your PHP config share | improve this answer | ...