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JavaScript: clone a function
What is a fastest way to clone a function in JavaScript (with or without its properties)?
14 Answers
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How to get number of entries in a Lua table?
...nd increase it every time you make an insertion.
count = 0
tbl = {}
tbl["test"] = 47
count = count + 1
tbl[1] = 48
count = count + 1
print(count) -- prints "2"
There's no other way, the # operator will only work on array-like tables with consecutive keys.
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Dealing with multiple Python versions and PIP?
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Doesn't work. Although the latest version of pip installed a pip-2.6 script, it didn't bother to install a pip-2.5 script.
– Chris B.
Feb 22 '11 at 20:06
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How to handle back button in activity
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I am testing out something and will update you. Thanks for the response.
– Si8
Nov 4 '16 at 15:06
1
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INSTALL_FAILED_NO_MATCHING_ABIS when install apk
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Wish I could upvote more than once... Tested and working on VS 2017 for Mac.
– JordiVilaplana
Apr 26 '18 at 11:23
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Is there a shortcut to move between header and source file in VC++?
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Excellent, tested and working. Answer posted in Nov 2010 - It still works in July 2012. Perfect!
– rptr
Jul 12 '12 at 17:43
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How to get the first non-null value in Java?
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If there are only two references to test and you are using Java 8, you could use
Object o = null;
Object p = "p";
Object r = Optional.ofNullable( o ).orElse( p );
System.out.println( r ); // p
If you import static Optional the expression is not too bad.
U...
bash/fish command to print absolute path to a file
... path. If you want to know about file existence use another tool like e.g. test.
– Benjamin Bannier
Feb 27 '13 at 17:47
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css transform, jagged edges in chrome
...CSS property -webkit-backface-visibility with a value of hidden. In my own tests, this has completely smoothed them out. Hope that helps.
-webkit-backface-visibility: hidden;
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Access Control Request Headers, is added to header in AJAX request with jQuery
... can also use JavaScript fetch instead (here)
let url='https://server.test-cors.org/server?enable=true&status=200&methods=POST&headers=My-First-Header,My-Second-Header';
$.ajax({
type: 'POST',
url: url,
headers: {
"My-First-Header":"first value",
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