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Explanation of JSONB introduced by PostgreSQL
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+50
First, hstore is a contrib module, which only allows you to store key => value pairs, where keys and values can only be texts (howe...
How do I pass an extra parameter to the callback function in Javascript .filter() method?
...turn function(element) {
return element.indexOf(wordToCompare) === 0;
}
}
addressBook.filter(startsWith(wordToCompare));
Another option would be to use Function.prototype.bind [MDN] (only available in browser supporting ECMAScript 5, follow a link for a shim for older browsers) and "f...
Match multiple cases classes in scala
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edited Dec 3 '09 at 6:54
answered Dec 3 '09 at 6:42
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How to find nth occurrence of character in a string?
...ng substr, int n) {
int pos = str.indexOf(substr);
while (--n > 0 && pos != -1)
pos = str.indexOf(substr, pos + 1);
return pos;
}
This post has been rewritten as an article here.
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What is the EAFP principle in Python?
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220
From the glossary:
Easier to ask for forgiveness than permission. This common Python coding ...
What is the difference between :first-child and :first-of-type?
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BoltClock♦BoltClock
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Draw radius around a point in Google map
I'm using the Google Maps API and have added markers. Now I want to add a 10 mile radius around each marker, meaning a circle that behaves appropriately while zooming. I have no idea how to do that and it seems it's not something common.
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How to initialize a struct in accordance with C programming language standards
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740
In (ANSI) C99, you can use a designated initializer to initialize a structure:
MY_TYPE a = { ....
How can I create a UILabel with strikethrough text?
...te(NSAttributedString.Key.strikethroughStyle, value: 2, range: NSMakeRange(0, attributeString.length))
then:
yourLabel.attributedText = attributeString
To make some part of string to strike then provide range
let somePartStringRange = (yourStringHere as NSString).range(of: "Text")
attributeStr...
Outputting data from unit test in python
...tion to the error message like this:
self.assertEqual(f.bar(t2), 2, msg='{0}, {1}'.format(t1, t2))
Offical docs here
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