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What does “export” do in shell programming? [duplicate]
...iable assignment is the same whether it is or is not preceded by "export". What's it for?
3 Answers
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Why is SSE scalar sqrt(x) slower than rsqrt(x) * x?
...precision (~23 bits of accuracy, if I remember properly), and is still somewhat faster than sqrtss.
edit: If speed is critical, and you're really calling this in a loop for many values, you should be using the vectorized versions of these instructions, rsqrtps or sqrtps, both of which process four ...
Regular expression to search for Gadaffi
I'm trying to search for the word Gadaffi. What's the best regular expression to search for this?
15 Answers
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How do I repeat an edit on multiple lines in Vim?
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Thanks. What if i wanted the equivalent of a shift-i? That is, skipping over the initial whitespace?
– saffsd
Dec 10 '08 at 12:49
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How to display loading message when an iFrame is loading?
... inject text as an svg-background. It allows for some flexbility, and from what I've read the browser support should be fairly decent (haven't tested it though):
Chrome >= 27
FireFox >= 30
Internet Explorer >= 9
Safari >= 5.1
html:
<iframe class="iframe-placeholder" src=""><...
When to use in vs ref vs out
...efore ) and the best explanation seems to be that ref == in and out , what are some (hypothetical or code) examples where I should always use out and not ref .
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Algorithm for classifying words for hangman difficulty levels as “Easy”,“Medium”, or “Hard”
What is a good algorithm to determine the "difficulty" of a word for a hangman game, so that the game can select words to match a specified difficulty level?
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SQL - using alias in Group By
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What does execution order have to do with the question? It isn't like the asker was trying to GROUP BY on the COUNT(). In fact, the query as asked works just fine in MySQL and likely PostgreSQL as pointed out in the comment...
How to split a String by space
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What you have should work. If, however, the spaces provided are defaulting to... something else? You can use the whitespace regex:
str = "Hello I'm your String";
String[] splited = str.split("\\s+");
This will cause any nu...
Injecting a mock into an AngularJS service
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What if your mock needs $q? Then you can't inject $q into the mock prior to calling module() in order to register the mock. Any thoughts?
– Jake
May 7 '15 at 15:15
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