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detect key press in python?
I am making a stopwatch type program in python and I would like to know how to detect if a key is pressed (such as p for pause and s for stop), and I would not like it to be something like raw_input that waits for the user's input before continuing execution. Anyone know how to do this in a while lo...
How to do a regular expression replace in MySQL?
...expression matching in the manner of the REGEXP and RLIKE operators, which now are synonyms for that function. In addition, the REGEXP_INSTR(), REGEXP_REPLACE(), and REGEXP_SUBSTR() functions are available to find match positions and perform substring substitution and extraction, respectively.
SELE...
How can I round up the time to the nearest X minutes?
...ldDateTimeObject.Minute % 15);
}
and is called like that
DateTime thisIsNow = DateTime.Now;
DateTime nextQuarterHour = GetNextQuarterHour(thisIsNow);
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How to unstash only certain files?
I stashed my changes. Now I want to unstash only some files from the stash. How can I do this?
7 Answers
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Parse date string and change format
...se is a better alternative if the exact format of a legal ISO string is unknown. ISO may or may not contain microseconds. It may or may not contain trailing "Z". datetime.strptime is not flexible enough to accomodate for that.
– Michael Kariv
Dec 12 '13 at 10:5...
back button callback in navigationController in iOS
...indexOfObject:self]==NSNotFound) {
// back button was pressed. We know this is true because self is no longer
// in the navigation stack.
}
[super viewWillDisappear:animated];
}
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Split large string in n-size chunks in JavaScript
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As this answer is now nearly 3 years old, I wanted to try the performance test made by @Vivin again. So FYI, splitting 100k characters two by two using the given regex is instantaneous on Chrome v33.
– aymericbeaumet
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Javascript regex returning true.. then false.. then true.. etc [duplicate]
... end.
[a-z0-9_-]
Whether that would cause this problem or not, I don't know.
Additional notes:
The first and last characters are allowed to be any character that isn't - or _ rather than being restricted to a-z0-9
a-z0-9 doesn't include uppercase characters. You need a-zA-Z0-9 for that.
a-zA-...
How do I get the value of text input field using JavaScript?
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@GKislin Ah! I see. Nice that I didn't know about it. But after reading this, I am feeling reluctant to add this edit to the answer right now. Maybe someday later, I will add it with a warning to avoid it. One of all reasons for warning would be this. If you feel l...
How to programmatically get iOS status bar height
I know that currently the status bar (with the time, battery, and network connection) at the top of the iPhone/iPad is 20 pixels for non-retina screens and 40 pixels for retina screens, but to future proof my app I would like to be able to determine this without hard coding values. Is it possible to...