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Regex empty string or email
...hing an email address (that is, if you want wrong code that happens to (usually) work), use the regular-expressions.info link someone else submitted.
As for the empty string, ^$ is mentioned by multiple people and will work fine.
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is it possible to update UIButton title/text programmatically?
...to update the title/text of the UIButton to reflect the new state. I'm calling:
12 Answers
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How to do multiple line editing?
I want to edit multiple lines in eclipse, but I can't find any short cut or Plugin. In Geany I just press ctrl + alt + up / down I can add / edit multiple lines.
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What is the argument for printf that formats a long?
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Actually, you should change it to be %ld, to be more harmonic with OP question.
– DrBeco
Jun 21 '15 at 5:28
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Detect when an image fails to load in Javascript
Is there a way to determine if a image path leads to an actual image, Ie, detect when an image fails to load in Javascript.
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Create space at the beginning of a UITextField
...but this is not the way. The reason you've to do it with a subclass is for all the edge cases. This code will probably crash before the subclass solution. But you are right that you shouldn't write code that is not strictly needed and can be provide by using the given libraries, but you shouldn't ab...
Is it safe to resolve a promise multiple times?
... rejected), that is it for a defered object - it is done.
If you should call then(...) on it's promise again, you should immediately get the (first) resolved/rejected result.
Additional calls to resolve() will not (should not?) have any effect. Not sure what happens if you attempt to reject a de...
How to destroy an object?
... objects as soon as the page is served. So this should only be needed on really long loops and/or heavy intensive pages.
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postgresql - sql - count of `true` values
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You can actually omit ELSE null to get the same result.
– 200_success
May 12 '16 at 18:26
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Actionbar notification count icon (badge) like Google has
...nflated from XML again. So, the whole setNotifCount(...) is useless. Just call setText(...) on the badge. And you can cast getActionView() to Button directly.
– caw
Mar 1 '14 at 15:30
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