大约有 36,010 项符合查询结果(耗时:0.0206秒) [XML]

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Remove an element from a Bash array

...eed to remove an element from an array in bash shell. Generally I'd simply do: 20 Answers ...
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How can you run a command in bash over until success

...wing is my attempt at putting a command into a loop to achieve this but it doesn't work for some reason. 6 Answers ...
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Create PostgreSQL ROLE (user) if it doesn't exist

How do I write an SQL script to create a ROLE in PostgreSQL 9.1, but without raising an error if it already exists? 10 Answ...
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What command means “do nothing” in a conditional in Bash?

Sometimes when making conditionals, I need the code to do nothing, e.g., here, I want Bash to do nothing when $a is greater than "10", print "1" if $a is less than "5", otherwise, print "2": ...
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How do you kill a Thread in Java?

How do you kill a java.lang.Thread in Java? 16 Answers 16 ...
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How to create has_and_belongs_to_many associations in Factory girl

... Here is the solution that works for me. FactoryGirl.define do factory :company do #company attributes end factory :user do companies {[FactoryGirl.create(:company)]} #user attributes end end if you will need specific company you can use factory this way compan...
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Is it a bad practice to use an if-statement without curly braces? [closed]

...d always code for maintainability. After all, I'm pretty sure the compiler doesn't care which form you use. Your coworkers, however may be pist if you introduce a bug because of a silly curly brace error. – Esteban Araya Jan 24 '10 at 0:16 ...
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If unit testing is so great, why aren't more companies doing it? [closed]

...oftware company that I worked at was all about the unit testing (NUnit). I don't know that we were real sticklers for it back then -- I have no idea what our code coverage was like and I was writing most of the unit tests. Since then I've run into some companies that do lots of testing, but it's cha...
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How do I attach events to dynamic HTML elements with jQuery? [duplicate]

...jquery.com/on/ So instead of... $(".myclass").click( function() { // do something }); You can write... $('body').on('click', 'a.myclass', function() { // do something }); This will work for all a tags with 'myclass' in the body, whether already present or dynamically added later. The...
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When is assembly faster than C?

...e is a real world example: Fixed point multiplies on old compilers. These don't only come handy on devices without floating point, they shine when it comes to precision as they give you 32 bits of precision with a predictable error (float only has 23 bit and it's harder to predict precision loss). ...