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Clear MySQL query cache without restarting server
...minal:
sync && echo 3 | sudo tee /proc/sys/vm/drop_caches
and then reset the query cache in mysql client:
RESET QUERY CACHE;
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Very Long If Statement in Python [duplicate]
... Readability is damaged by putting multiple parameters on one line, but then still breaking and putting the rest on a second line. Either break after each or keep them all in one line, if it is not too long. "What's so special about height, that there is a break after it?" "Why not break after wi...
How to clear ostringstream [duplicate]
...u know that no error flags are set or you don't care about resetting them, then you don't need to call clear().
Usually it is easier, cleaner, and more straightforward (straightforwarder?) just to use a new std::ostringstream object instead of reusing an existing one, unless the code is used in a k...
Shortcut to Apply a Formula to an Entire Column in Excel [closed]
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Mac users: cmd + shift + down, then ctrl + d
– clmarquart
Feb 15 '16 at 12:02
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Declare a block method parameter without using a typedef
...er) …
}
- (void)parseLoginResponse {
// Receive and parse response, then make callback
_loginCallback(response);
Block_release(_loginCallback);
_loginCallback = nil;
}
// this is how we make the call:
[instanceOfCallbackAsyncClass loginWithCallback:^(NSDictionary *response) {
/...
How to convert list to string [duplicate]
...requires separate items such as when passing a list of files to a process, then "" has to be changed to " " (notice the space between the quotes). Otherwise, you end up with a contiguous string ("123" instead of "1 2 3"). This is OK if that was the intention, but needs to be mentioned in the respons...
PHP prepend leading zero before single digit number, on-the-fly [duplicate]
...Is there a quick, on-the-fly method to test for a single character string, then prepend a leading zero?
3 Answers
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jQuery: outer html() [duplicate]
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Create a temporary element, then clone() and append():
$('<div>').append($('#xxx').clone()).html();
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How can I print each command before executing? [duplicate]
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This works with standard /bin/sh as well IIRC (it might be a POSIX thing then)
And remember, there is bashdb (bash Shell Debugger, release 4.0-0.4)
To revert to normal, exit the subshell or
set +o xtrace
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PHP - add item to beginning of associative array [duplicate]
...n this instance, but if an element with key 'key0' already existed in $arr then this value would overwrite the new value being prepended (ie. 'value0' would get overwritten). You can use the union operator (+) to resolve this.
– MrWhite
Mar 25 '13 at 12:17
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