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What's the purpose of starting semi colon at beginning of JavaScript? [duplicate]
...'t need to know these additional rules, and hope everyone else does. If we all had perfect knowledge all the time we could program in binary, but we don't. Best practice is there to assist us. It's up to you of course whether you choose to follow it or not.
– James Gaunt
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How do I check whether a jQuery element is in the DOM?
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There is a pure-DOM way to do this, which is syntactically more readable, and I imagine very similar in terms of performance: document.contains($foo[0])
– Joel Cross
Dec 1 '15 at 10:16
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How to round up to the nearest 10 (or 100 or X)?
...en just define:
roundUp <- function(x) 10^ceiling(log10(x))
This actually also works when x is a vector:
> roundUp(c(0.0023, 3.99, 10, 1003))
[1] 1e-02 1e+01 1e+01 1e+04
..but if you want to round to a "nice" number, you first need to define what a "nice" number is. The following lets us...
'dragleave' of parent element fires when dragging over children elements
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The only downside to this approach is that it nukes all pointer events on child elements (eg they can no longer have separate :hover styles or click event handlers). In case you want to preserve those events, here's another workaround I've been using: bensmithett.github.io/dra...
C++: What is the size of an object of an empty class?
...can be 1 because alignment doesn't matter here, as there is nothing to actually look at.
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Set a cookie to never expire
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All cookies expire as per the cookie specification, so this is not a PHP limitation.
Use a far future date. For example, set a cookie that expires in ten years:
setcookie(
"CookieName",
"CookieValue",
time() + (10 * 3...
Why does pycharm propose to change method to static
...is because the method does not use self in its body and hence does not actually change the class instance. Hence the method could be static, i.e. callable without passing a class instance or without even having created a class instance.
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Double vs single quotes
I'm really new to Ruby and I'm trying to understand if there's a specific time when I should use "" vs '' .
8 Answers
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Is there a “theirs” version of “git merge -s ours”?
... topic branch "B" into "A" using git merge , I get some conflicts. I know all the conflicts can be solved using the version in "B".
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iPhone 5 CSS media query
...Keep in mind it reacts the iPhone 5, not to the particular iOS version installed on said device.
To merge with your existing version, you should be able to comma-delimit them:
@media only screen and (max-device-width: 480px), only screen and (min-device-width: 560px) and (max-device-width: 1136px)...