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How do you check if a selector matches something in jQuery? [duplicate]
...e slower- you can do:
jQuery.fn.exists = function(){return this.length>0;}
Then in your code you can use
if ($(selector).exists()) {
// Do something
}
As answered here
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Convert seconds to HH-MM-SS with JavaScript?
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--update 2
Please use @Frank's a one line solution:
new Date(SECONDS * 1000).toISOString().substr(11, 8)
It is by far the best solution.
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How can one use multi threading in PHP applications
...tion run() {
if ($this->arg) {
$sleep = mt_rand(1, 10);
printf('%s: %s -start -sleeps %d' . "\n", date("g:i:sa"), $this->arg, $sleep);
sleep($sleep);
printf('%s: %s -finish' . "\n", date("g:i:sa"), $this->arg);
}
}
}
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Convert float to double without losing precision
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uppercase first character in a variable with bash
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foo="$(tr '[:lower:]' '[:upper:]' <<< ${foo:0:1})${foo:1}"
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The point of test %eax %eax [duplicate]
...flag is set if the arguments to CMP are equal.
So,
TEST %eax, %eax
JE 400e77 <phase_1+0x23>
jumps if the %eax is zero.
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Best way to randomize an array with .NET
...t way to randomize an array of strings with .NET? My array contains about 500 strings and I'd like to create a new Array with the same strings but in a random order.
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Android ViewPager - Show preview of page on left and right
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rsync: difference between --size-only and --ignore-times
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Fernando Silveira
67288 silver badges2020 bronze badges
answered Dec 8 '12 at 16:18
ckgckg
1,85211 gold badge1414 si...
Why use Object.prototype.hasOwnProperty.call(myObj, prop) instead of myObj.hasOwnProperty(prop)?
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Is there any practical difference [between my examples]?
The user may have a JavaScript ob...