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psql: FATAL: Ident authentication failed for user “postgres”
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How to add a border just on the top side of a UIView
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33 Answers
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no acceptable C compiler found in $PATH when installing python
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edited Jun 13 '18 at 11:52
Duncan
26122 silver badges1717 bronze badges
answered Nov 6 '13...
How to empty a list?
...bel with a new empty list:
del lst[:]
Here's an example:
lst1 = [1, 2, 3]
lst2 = lst1
del lst1[:]
print(lst2)
For the sake of completeness, the slice assignment has the same effect:
lst[:] = []
It can also be used to shrink a part of the list while replacing a part at the same time (but tha...
Limiting floats to two decimal points
I want a to be rounded to 13.95 .
26 Answers
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Replace only text inside a div using jquery
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Text shouldn't be on its own. Put it into a span element.
Change it to this:
<div id="one"...
Convert Rows to columns using 'Pivot' in SQL Server
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If you are using SQL Server 2005+, then you can use the PIVOT function to transform the data f...
How to compare strings ignoring the case
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answered May 16 '10 at 16:33
molfmolf
66.4k1313 gold badges129129 silver badges114114 bronze badges
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Bash if statement with multiple conditions throws an error
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BuZZ-dEE
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answered Apr 24 '13 at 22:12
mkhatibmkhatib
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What is the fastest integer division supporting division by zero no matter what the result is?
... movl %eax, %ecx
popl %ebp
movl %edx, %eax
sarl $31, %edx
idivl %ecx
ret
As this turned out to be such a popular question and answer, I'll elaborate a bit more. The above example is based on programming idiom that a compiler recognizes. In the above case a boole...