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Number.sign() in javascript

Wonder if there are any nontrivial ways of finding number's sign ( signum function )? May be shorter / faster / more elegant solutions than the obvious one ...
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CSS border less than 1px [duplicate]

The default border:1px is too big. However, border: 0.5px solid; is not working. Is there a CSS solution that would make the border half the size? ...
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Is there a splice method for strings?

The Javascript splice only works with arrays. Is there similar method for strings? Or should I create my own custom function? ...
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HTML5 Pre-resize images before uploading

Here's a noodle scratcher. 10 Answers 10 ...
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How do I check if a Sql server string is null or empty

I want to check for data, but ignore it if it's null or empty. Currently the query is as follows... 18 Answers ...
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Need a simple explanation of the inject method

I'm looking at this code but my brain is not registering how the number 10 can become the result. Would someone mind explaining what's happening here? ...
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How to join absolute and relative urls?

I have two urls: 6 Answers 6 ...
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Efficient Algorithm for Bit Reversal (from MSB->LSB to LSB->MSB) in C

What is the most efficient algorithm to achieve the following: 27 Answers 27 ...
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Best way of returning a random boolean value

I've been using this for some time to return either true or false when building fake seed data. Just wondering if anybody has a better, more succinct or verbose way of returning either true or false . ...
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How to create SBT project with IntelliJ Idea?

I just got started with Scala/LiftWeb/Sbt developing, and I'd like to import a Sbt project in IntelliJ Idea. Actually, I managed to import my project in two different ways: ...