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Reordering arrays
...
If you know the indexes you could easily swap the elements, with a simple function like this:
function swapElement(array, indexA, indexB) {
var tmp = array[indexA];
array[indexA] = array[indexB];
array[indexB] = tmp;
}...
GCC -fPIC option
...that the generated machine code is not dependent on being located at a specific address in order to work.
E.g. jumps would be generated as relative rather than absolute.
Pseudo-assembly:
PIC: This would work whether the code was at address 100 or 1000
100: COMPARE REG1, REG2
101: JUMP_IF_EQUAL C...
Make a phone call programmatically
...tring:[@"tel://" stringByAppendingString:phone]];
NSURL *targetURL = nil;
if ([UIApplication.sharedApplication canOpenURL:urlOption1]) {
targetURL = urlOption1;
} else if ([UIApplication.sharedApplication canOpenURL:urlOption2]) {
targetURL = urlOption2;
}
if (targetURL) {
if (@availab...
How can I get file extensions with JavaScript?
...is takes care of .file (Unix hidden, I believe) kind of files too. That is if you want to keep it as a one-liner, which is a bit messy to my taste.
– kooker
Jun 21 '14 at 4:00
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How do I check if the mouse is over an element in jQuery?
...e return value to data in the object. Then onmouseover, cancel the timeout if there is a value in the data.
Remove the data on callback of the fadeout.
It is actually less expensive to use mouseenter/mouseleave because they do not fire for the menu when children mouseover/mouseout fire.
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Function overloading in Javascript - Best practices
...s. This object can hold anything.
function foo(a, b, opts) {
// ...
if (opts['test']) { } //if test param exists, do something..
}
foo(1, 2, {"method":"add"});
foo(3, 4, {"test":"equals", "bar":"tree"});
Then you can handle it anyway you want in your method. [Switch, if-else, etc.]
...
throws Exception in finally blocks
...Elsewhere:
protected void closeQuietly( Resource resource ) {
try {
if (resource != null) {
resource.close();
}
} catch( Exception ex ) {
log( "Exception during Resource.close()", ex );
}
}
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Is there an easy way to return a string repeated X number of times?
... of indentations before a string based on an items depth and I'm wondering if there is a way to return a string repeated X times. Example:
...
Breaking out of nested loops [duplicate]
...ing over a list of sentences and using several for loops to filter out specific sentences based on existence of specific words or numbers, before doing the actual work at the end of the outer for loop.
– Anthon
Oct 4 '12 at 6:51
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Is it Pythonic to use list comprehensions for just side effects?
...way (I have been known to use a genex in the for before, to get rid of the if).
– Ignacio Vazquez-Abrams
Apr 22 '11 at 8:34
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