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Should one use < or
If you had to iterate through a loop 7 times, would you use:
39 Answers
39
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uint8_t vs unsigned char
...ll be storing small numbers, rather than a character.
Also it looks nicer if you're using other typedefs such as uint16_t or int32_t.
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Add primary key to existing table
...ption in the case of composite PKs for performance on insertion date basis if that is important for you.
– Shiv
Feb 10 '17 at 5:23
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How exactly does a generator comprehension work?
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Do you understand list comprehensions? If so, a generator expression is like a list comprehension, but instead of finding all the items you're interested and packing them into list, it waits, and yields each item out of the expression, one by one.
>>> my...
Copy/duplicate database without using mysqldump
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If you don't want to save the password plaintext in your terminals history, you need to split the command: mysqldump -h [server] -u [user] -p db1 > db1, mysql -h [server] -u [user] -p db2 < db1 Otherwise the password p...
Get position of UIView in respect to its superview's superview
...ect frame = [firstView convertRect:buttons.frame fromView:secondView];
Swift
let frame = firstView.convert(buttons.frame, from:secondView)
Documentation reference:
https://developer.apple.com/documentation/uikit/uiview/1622498-convert
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How do I disable right click on my web page?
...ing of the right click (context) menu anyway.
Not sure why you'd want to. If it's out of some misplaced belief that you can protect your source code or images that way, think again: you can't.
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How to see what will be updated from repository before issuing “svn update” command?
...ory, without updating your local working copy, here is what you can
do:
if you want to know what has been changed in svn server repository, run
command:
$ svn st -u
if you want to know if the same file has been modified both in your local
working copy and in svn server repository, run comm...
.NET - Get protocol, host, and port
... in .NET to quickly get the current protocol, host, and port? For example, if I'm on the following URL:
7 Answers
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Using unset vs. setting a variable to empty
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Mostly you don't see a difference, unless you are using set -u:
/home/user1> var=""
/home/user1> echo $var
/home/user1> set -u
/home/user1> echo $var
/home/user1> unset var
/home/user1> echo $var
-bash: var: unbound variable
S...