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How to detect a loop in a linked list?
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25 Answers
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How to get the mouse position without events (without moving the mouse)?
... page with a div that covers the whole document. Inside that, create (say) 2,000 x 2,000 <a> elements (so that the :hover pseudo-class will work in IE 6, see), each 1 pixel in size. Create a CSS :hover rule for those <a> elements that changes a property (let's say font-family). In your l...
How to dump a table to console?
...ng the one from Penlight:
> t = { a = { b = { c = "Hello world!", 1 }, 2, d = { 3 } } }
> require 'pl.pretty'.dump(t)
{
a = {
d = {
3
},
b = {
c = "Hello world!",
1
},
2
}
}
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C# namespace alias - what's the point?
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152
That is a type alias, not a namespace alias; it is useful to disambiguate - for example, against...
How to get the sizes of the tables of a MySQL database?
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2016
You can use this query to show the size of a table (although you need to substitute the varia...
Why do we check up to the square root of a prime number to determine if it is prime?
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edited May 26 at 19:28
answered Apr 27 '11 at 22:04
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How to do a logical OR operation in shell scripting
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edited Apr 26 '18 at 10:40
JohannesM
21122 silver badges1212 bronze badges
answered Nov 6...
Parse query string into an array
...ut in an array instead of into individual variables.
$get_string = "pg_id=2&parent_id=2&document&video";
parse_str($get_string, $get_array);
print_r($get_array);
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nodejs how to read keystrokes from stdin
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62
You can achieve it this way, if you switch to raw mode:
var stdin = process.openStdin();
requir...
Changing the selected option of an HTML Select element
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329
Vanilla JavaScript
Using plain old JavaScript:
var val = "Fish";
var sel = document.getE...