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Is short-circuiting logical operators mandated? And evaluation order?

... @Joe: but return value and arguments of the operator may change from boolean to something else. I used to implement "special" logic with THREE values ("true", "false" and "unknown"). Return value is deterministic, but short-circuiting behaviour is not appropriate. – ...
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Finding out whether a string is numeric or not

... check if a string is made up of numbers only. I am taking out a substring from a string and want to check if it is a numeric substring or not. ...
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How to remove all .svn directories from my application directories

...n export tool I have in my application, is to clean all .svn directories from my application directory tree. I am looking for a recursive command in the Linux shell that will traverse the entire tree and delete the .svn files. ...
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Getting the closest string match

...y, but "phrases" which contain 'additional information' (longer) but aside from that still mostly share the same characters suffer a reduced penalty. I used the Value Words function as is, and then my final SearchVal heuristic was defined as =MIN(D2,E2)*0.8+MAX(D2,E2)*0.2 - a weighted average. Which...
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Is there documentation for the Rails column types?

... Guidelines built from personal experience: String: Limited to 255 characters (depending on DBMS) Use for short text fields (names, emails, etc) Text: Unlimited length (depending on DBMS) Use for comments, blog posts, etc. General rule ...
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Difference between declaring variables before or in loop?

... Which is better, a or b? From a performance perspective, you'd have to measure it. (And in my opinion, if you can measure a difference, the compiler isn't very good). From a maintenance perspective, b is better. Declare and initialize variables in t...
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How do I check whether a jQuery element is in the DOM?

...s I was typing my question: Call $foo.parent() If $f00 has been removed from the DOM, then $foo.parent().length === 0. Otherwise, its length will be at least 1. [Edit: This is not entirely correct, because a removed element can still have a parent; for instance, if you remove a <ul>, each...
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Setting element of array from Twig

How can I set member of an already existing array from Twig? 10 Answers 10 ...
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Create a completed Task

... 2. Either you haven't downloaded the latest CTP (which is 4 and linked to from that site) or you haven't specified version 4.5.3. Here's what's on my machine. @PeterRitchie – i3arnon Oct 14 '14 at 17:23 ...
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Correct way to populate an Array with a Range in Ruby

.... But this creates another array inside the array, I simply want the range from 2 to 25. Yet if I try order << (2.25) I get the error can't convert Range into Integer. – kakubei Nov 10 '11 at 14:29 ...