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Best way to detect that HTML5 is not supported
... browser does not support the HTML5 <canvas> tag is to embed some fallback content like:
8 Answers
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How to avoid long nesting of asynchronous functions in Node.js
... I'm just a newbie in Node.js, so as far as I understand, if I want to use all of them in a single page (HTTP response) I'd have to nest them all:
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General guidelines to avoid memory leaks in C++ [closed]
... programs? How do I figure out who should free memory that has been dynamically allocated?
29 Answers
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jQuery see if any or no checkboxes are selected
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JQuery .is will test all specified elements and return true if at least one of them matches selector:
if ($(":checkbox[name='choices']", form).is(":checked"))
{
// one or more checked
}
else
{
// nothing checked
}
...
Can Powershell Run Commands in Parallel?
...o do some batch processing on a bunch of images and I'd like to do some parallel processing. Powershell seems to have some background processing options such as start-job, wait-job, etc, but the only good resource I found for doing parallel work was writing the text of a script out and running thos...
What platforms have something other than 8-bit char?
...hing as it is playing by the rules. In C++, for example, the standard says all bytes will have "at least" 8 bits. If your code assumes that bytes have exactly 8 bits, you're violating the standard.
This may seem silly now -- "of course all bytes have 8 bits!", I hear you saying. But lots of very sm...
Why em instead of px?
...something else like the size of the browser window or the font size.
Like all the other absolute units, px units don't scale according to the width of the browser window. Thus, if your entire page design uses absolute units such as px rather than %, it won't adapt to the width of the browser. This...
What makes Scala's operator overloading “good”, but C++'s “bad”?
...t to be repeated in newer languages. Certainly, it was one feature specifically dropped when designing Java.
14 Answers
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What's the equivalent of use-commit-times for git?
...ion of "wrong" you are talking about.
It's WRONG.
It's STUPID.
And it's totally INFEASIBLE to implement.
(Note: small improvement: after a checkout, timestamps of up-to-date files are no longer modified (Git 2.2.2+, January 2015): "git checkout - how can I maintain timestamps when switching branch...
Get list of data-* attributes using javascript / jQuery
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Actually, if you're working with jQuery, as of version 1.4.3 1.4.4 (because of the bug as mentioned in the comments below), data-* attributes are supported through .data():
As of jQuery 1.4.3 HTML 5 data-
attributes will b...