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What is the difference between `sorted(list)` vs `list.sort()`?
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329
sorted() returns a new sorted list, leaving the original list unaffected. list.sort() sorts the...
How to do a batch insert in MySQL
...nd separated by commas.
Example:
INSERT INTO tbl_name (a,b,c) VALUES(1,2,3),(4,5,6),(7,8,9);
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How to take screenshot of a div with JavaScript?
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102
No, I don't know of a way to 'screenshot' an element, but what you could do, is draw the quiz re...
No Multiline Lambda in Python: Why not?
...k at the following:
map(multilambda x:
y=x+1
return y
, [1,2,3])
Is this a lambda returning (y, [1,2,3]) (thus map only gets one parameter, resulting in an error)? Or does it return y? Or is it a syntax error, because the comma on the new line is misplaced? How would Python know wh...
Updating MySQL primary key
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235
Next time, use a single "alter table" statement to update the primary key.
alter table xx dro...
How to search by key=>value in a multidimensional array in PHP
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220
Code:
function search($array, $key, $value)
{
$results = array();
if (is_array($arra...
unbound method f() must be called with fibo_ instance as first argument (got classobj instance inste
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kindallkindall
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How to get everything after a certain character?
..., then substr grabs everything from that index plus 1, onwards.
$data = "123_String";
$whatIWant = substr($data, strpos($data, "_") + 1);
echo $whatIWant;
If you also want to check if the underscore character (_) exists in your string before trying to get it, you can use the following:
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How to concatenate text from multiple rows into a single text string in SQL server?
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How to create a MySQL hierarchical recursive query
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424
For MySQL 8+: use the recursive with syntax.
For MySQL 5.x: use inline variables, path IDs, or ...