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What’s the difference between “Array()” and “[]” while declaring a JavaScript array?

...ceeds the size of the stack, and it has to be re-created. So there can actually, depending on the use case, be a performance increase when using new Array() because you can prevent the overflow from happening. As pointed out in this answer, new Array(5) will not actually add five undefined items to...
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Install dependencies globally and locally using package.json

Using npm we can install the modules globally using -g option. How can we do this in the package.json file? 6 Answers ...
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How to remove RVM (Ruby Version Manager) from my system

... that will pull it: rvm implode This will remove the rvm/ directory and all the rubies built within it. In order to remove the final trace of rvm, you need to remove the rvm gem, too: gem uninstall rvm If you've made modifications to your PATH you might want to pull those, too. Check your .bas...
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Should I avoid the use of set(Preferred|Maximum|Minimum)Size methods in Java Swing?

...uld I use them? In which context? For what purposes? I don't know, personally I think of it as an API design accident. Slightly forced by compound components having special ideas about child sizes. "Slightly", because they should have implemented their needs with a custom LayoutManager. What ex...
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Add vertical whitespace using Twitter Bootstrap?

...g the documentation for used notation: Spacing utilities that apply to all breakpoints, from xs to xl, have no breakpoint abbreviation in them. This is because those classes are applied from min-width: 0 and up, and thus are not bound by a media query. The remaining breakpoints, however, d...
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What's the “big idea” behind compojure routes?

...ave been using Compojure to write a basic web application. I'm hitting a wall with Compojure's defroutes syntax, though, and I think I need to understand both the "how" and the "why" behind it all. ...
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Xcode 4 hangs at “Attaching to (app name)”

...n in the simulator or iOS device. It was working perfectly in Xcode 3, but all of a sudden now when I press run the program stops at "Attaching to...". There doesn't seem to be any other info to help with this problem either. ...
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Should a .sln be committed to source control?

... +1 - I personally also don't commit anything that gets built, thus bin/ and obj/ – Steven Evers Jun 23 '09 at 19:56 ...
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Uppercase or lowercase doctype?

... In HTML, the DOCTYPE is case insensitive. The following DOCTYPEs are all valid: <!doctype html> <!DOCTYPE html> <!DOCTYPE HTML> <!DoCtYpE hTmL> In XML serializations (i.e. XHTML) the DOCTYPE is not required, but if you use it, DOCTYPE should be uppercase: <!DOCTY...
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How to clean node_modules folder of packages that are not in package.json?

Assume I install project packages with npm install that looks into package.json for modules to be installed. After a while I see that I don't need some specific module and remove its dependency from package.json . Then I remove some other modules from package.json because they are not needed ...