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How expensive is the lock statement?
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Here is an article that goes into the cost. Short answer is 50ns.
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php var_dump() vs print_r()
...$obj) will display below output in the screen.
object(stdClass)#1 (3) {
[0]=> string(12) "qualitypoint"
[1]=> string(12) "technologies"
[2]=> string(5) "India"
}
And, print_r($obj) will display below output in the screen.
stdClass Object (
[0] => qualitypoint
[1] => technolo...
How to post pictures to instagram using API
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edited Sep 3 '18 at 7:10
answered Sep 17 '13 at 8:22
Alb...
How do I get the n-th level parent of an element in jQuery?
...to the outer ones, you can chain it into eq():
$('#element').parents().eq(0); // "Father".
$('#element').parents().eq(2); // "Great-grandfather".
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Uncaught TypeError: Cannot read property 'msie' of undefined - jQuery tools
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edited Jun 20 at 9:12
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answered Feb 17 '13 at 16:50
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Select N random elements from a List in C#
...e probability of selection = (number needed)/(number left)
So if you had 40 items, the first would have a 5/40 chance of being selected. If it is, the next has a 4/39 chance, otherwise it has a 5/39 chance. By the time you get to the end you will have your 5 items, and often you'll have all of them...
Oracle “Partition By” Keyword
...turn every record in the emp table.)
emp_no dept_no DEPT_COUNT
1 10 3
2 10 3
3 10 3 <- three because there are three "dept_no = 10" records
4 20 2
5 20 2 <- two because there are two "dept_no = 20" records
If there was another co...
Algorithm to calculate the number of divisors of a given number
...he divisors together and apply those numbers into the formula above.
Not 100% sure about my algo description but if that isn't it it's something similar .
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how do i block or restrict special characters from input fields with jquery?
...ut').on('keypress', function (event) {
var regex = new RegExp("^[a-zA-Z0-9]+$");
var key = String.fromCharCode(!event.charCode ? event.which : event.charCode);
if (!regex.test(key)) {
event.preventDefault();
return false;
}
});
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