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In Bash, how to add “Are you sure [Y/n]” to any command or alias?
...r, for Bash >= version 3.2:
read -r -p "Are you sure? [y/N] " response
if [[ "$response" =~ ^([yY][eE][sS]|[yY])$ ]]
then
do_something
else
do_something_else
fi
Note: If $response is an empty string, it will give an error. To fix, simply add quotation marks: "$response". – Always use...
How do I parse a string into a number with Dart?
...s double);
print(myDouble); // 123.45
parse() will throw FormatException if it cannot parse the input.
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target=“_blank” vs. target=“_new”
What's the difference between <a target="_new"> and <a target="_blank"> and which should I use if I just want to open a link in a new tab/window?
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How to suppress GCC warnings from library headers?
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If you're trying to do this in XCode then stick -isystem path into your "other C++ flags" in the "custom compiler flags" in your target build settings.
– Matt Parkins
Dec 11 '13 at 12:08...
RegEx: Smallest possible match or nongreedy match
...ible (e.g. {3,}? or {5,7}?).
The documentation on regular expression quantifiers may also be helpful.
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Each for object? [duplicate]
...stand the implications of using a normal for-loop and see use for it's specific characteristics like looping over the property chain.
But usually, a for-loop doesn't work better than jQuery or Object.keys().map(). I'll go into two potential issues with using a plain for-loop below.
Right, so al...
javascript: Clear all timeouts?
...() {}, 0);
while (id--) {
window.clearTimeout(id); // will do nothing if no timeout with id is present
}
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JQuery Event for user pressing enter in a textbox?
Is there any event in Jquery that's triggered only if the user hits the enter button in a textbox? Or any plugin that can be added to include this? If not, how would I write a quick plugin that would do this?
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PHP + MySQL transactions examples
... transaction
$db->beginTransaction();
// A set of queries; if one fails, an exception should be thrown
$db->query('first query');
$db->query('second query');
$db->query('third query');
// If we arrive here, it means that no exception was thrown
// i....
Group by with multiple columns using lambda
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If my 'source' variable is a Dictionary Collection this not work. Suggestions?
– Joao Paulo
Oct 15 '15 at 13:32
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