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How to detect if a variable is an array
What is the best de-facto standard cross-browser method to determine if a variable in JavaScript is an array or not?
12 Ans...
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
...
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...
Is there a way to detect if an image is blurry?
I was wondering if there is a way to determine if an image is blurry or not by analyzing the image data.
12 Answers
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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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Get Android Phone Model programmatically
I would like to know if there is a way for reading the Phone Model programmatically in Android.
16 Answers
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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.]
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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 );
}
}
share
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How to loop through a plain JavaScript object with the objects as members?
...
for (var key in validation_messages) {
// skip loop if the property is from prototype
if (!validation_messages.hasOwnProperty(key)) continue;
var obj = validation_messages[key];
for (var prop in obj) {
// skip loop if the property is from prototype
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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:
...