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How do I get the object if it exists, or None if it does not exist?
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How to squash commits in git after they have been pushed?
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Error handling in Bash
... incompatible with POSIX removing the function keyword doesn't make it any more able to run under POSIX sh, but my main point was that you've (IMO) devalued the answer by weakening the recommendation to use set -e. Stackoverflow isn't about "your" code, it's about having the best answers.
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Why isn't SQL ANSI-92 standard better adopted over ANSI-89?
...me people learn by rote.
I am gradually seeing people using SQL-92 syntax more frequently than I used to, though. I've been answering SQL questions online since 1994.
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How to initialize an array's length in JavaScript?
...ty.
Some tests show that setting the initial length of large arrays can be more efficient if the array is filled afterwards, but the performance gain (if any) seem to differ from browser to browser.
jsLint does not like new Array() because the constructer is ambiguous.
new Array(4);
creates an em...
find -exec a shell function in Linux?
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How to convert Strings to and from UTF8 byte arrays in Java
...wadays. Windows-1252 and ISO-8859-1 (which are supersets of ASCII) are far more widespread.
– Michael Borgwardt
Oct 9 '09 at 13:26
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jQuery autocomplete tagging plug-in like StackOverflow's input tags? [closed]
... Anyone looking for the most up to date version, documentation and more extensive examples of this amazing plugin should go here and fork away: github.com/aehlke/tag-it
– Crisman
Feb 21 '12 at 21:15
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How to output numbers with leading zeros in JavaScript [duplicate]
...; size) s = "0" + s;
return s;
}
Or if you know you'd never be using more than X number of zeros this might be better. This assumes you'd never want more than 10 digits.
function pad(num, size) {
var s = "000000000" + num;
return s.substr(s.length-size);
}
If you care about negative...
Initializing a static std::map in C++
... that it often has several new library dependencies, which generally means MORE packages that need to be installed to work correctly. We already need libstdc++. For example, the Boost ASIO library, requires at least 2 new libraries(probably more) that need to be installed. C++11/14 does make it a...