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What is the difference between trie and radix trie data structures?
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edited Nov 15 '15 at 10:29
Peter Mortensen
26.5k2121 gold badges9292 silver badges122122 bronze badges
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MySQL - Get row number on select
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Take a look at this.
Change your query to:
SET @rank=0;
SELECT @rank:=@rank+1 AS rank, itemID, COUNT(*) as ordercount
FROM orders
GROUP BY itemID
ORDER BY ordercount DESC;
SELECT @rank;
The last select is your count.
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What is the best way to test for an empty string in Go?
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10 Answers
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Programmatically selecting text in an input field on iOS devices (mobile Safari)
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10 Answers
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iOS 7 status bar back to iOS 6 default style in iPhone app?
...ssed in #4), the UINavigationController will draw your image in the frame (0,20,320,44), leaving 20 points of opaque black space above your custom image. This may confuse you into thinking you are a clever developer who bypassed rule #1, but you are mistaken. The navigation bar is still 64 points ta...
Is == in PHP a case-sensitive string comparison?
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101
Yes, == is case sensitive.
You can use strcasecmp for case insensitive comparison
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Is there a function to deselect all text using JavaScript?
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edited Feb 23 '18 at 0:10
John
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answered J...
Python: finding an element in a list [duplicate]
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Insert new item in array on any position in PHP
...// not necessarily an array, see manual quote
array_splice( $original, 3, 0, $inserted ); // splice in at position 3
// $original is now a b c x d e
If replacement is just one element it is not necessary to put array() around it, unless the element is an array itself, an object or NULL.
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How to sort an array by a date property
... else if(sort_o1_after_o2) return 1;
else return 0;
});
Or more tersely:
array.sort(function(o1,o2){
return sort_o1_before_o2 ? -1 : sort_o1_after_o2 ? 1 : 0;
});
Generic, Powerful Answer
Define a custom non-enumerable sortBy function using a Schwartzian transform o...