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Hide/Show Column in an HTML Table

...assuming style rules like: table.hide1 .col1 { display: none; } table.hide2 .col2 { display: none; } ... This is going to be faster than any JS loop approach; for really long tables it can make a significant difference to responsiveness. If you can get away with not supporting IE6, you could use...
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Creating a new column based on if-elif-else condition

... passing in the axis=1 option: In [1]: df['C'] = df.apply(f, axis=1) In [2]: df Out[2]: A B C a 2 2 0 b 3 1 1 c 1 3 -1 Of course, this is not vectorized so performance may not be as good when scaled to a large number of records. Still, I think it is much more readable. Especially c...
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Why would I use a templating engine? jsp include and jstl vs tiles, freemarker, velocity, sitemesh

... answered Jul 2 '10 at 20:18 matt bmatt b 130k6262 gold badges265265 silver badges330330 bronze badges ...
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How can I delay a method call for 1 second?

... 256 performSelector:withObject:afterDelay: Document Reference ...
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Mocking a class: Mock() or patch()?

... 2 Answers 2 Active ...
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Less aggressive compilation with CSS3 calc

...ession inside calc by default since v3.00. Original answer (Less v1.x...2.x): Do this: body { width: calc(~"100% - 250px - 1.5em"); } In Less 1.4.0 we will have a strictMaths option which requires all Less calculations to be within brackets, so the calc will work "out-of-the-box". This is an ...
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Batch script: how to check for admin rights

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How can I ensure that a division of integers is always rounded up?

... UPDATE: This question was the subject of my blog in January 2013. Thanks for the great question! Getting integer arithmetic correct is hard. As has been demonstrated amply thus far, the moment you try to do a "clever" trick, odds are good that you've made a mistake. And when a fla...
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LaTeX Optional Arguments

... Example from the guide: \newcommand{\example}[2][YYY]{Mandatory arg: #2; Optional arg: #1.} This defines \example to be a command with two arguments, referred to as #1 and #2 in the {<definition>}--nothing new so far. But by addi...
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Stack smashing detected

... | edited Oct 25 '15 at 0:11 Demi 3,05611 gold badge2626 silver badges3232 bronze badges ans...