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Deny all, allow only one IP through htaccess

I'm trying to deny all and allow only for a single IP. But, I would like to have the following htaccess working for that single IP. I'm not finding a way to have both working: the deny all and allow only one, plus the following options: ...
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How can I check for “undefined” in JavaScript? [duplicate]

.../ true As @CMS pointed out, this has been patched in ECMAScript 5th ed., and undefined is non-writable. if (window.myVar) will also include these falsy values, so it's not very robust: false 0 "" NaN null undefined Thanks to @CMS for pointing out that your third case - if (myVariable) can als...
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How to run a shell script on a Unix console or Mac terminal?

I know it, forget it and relearn it again. Time to write it down. 7 Answers 7 ...
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TypeScript static classes

...classes? In C# a static class is simply a class that cannot be subclassed and must contain only static methods. C# does not allow one to define functions outside of classes. In TypeScript this is possible, however. If you're looking for a way to put your functions/methods in a namespace (i.e. not ...
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Default constructor with empty brackets

...lt;T>(ifs)), std::istream_iterator<T>()); Or, if you have C++11 and list-initialization (also known as uniform initialization) available: std::vector<T> v{std::istream_iterator<T>{ifs}, std::istream_iterator<T>{}}; With this, there is no way it could be interpreted as...
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Bootstrap Dropdown with Hover

... So much better than long 'full-built' solutions. Just add this and the default 'click' dropdown works on hover without extra changes. – IamFace Apr 13 '14 at 19:59 51 ...
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How do I check if an element is really visible with JavaScript? [duplicate]

... elementFromPoint() says that element is completely overlapped by another (and you treat it as invisible) but user can see it. – Konstantin Smolyanin Aug 27 '13 at 20:02 1 ...
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npm can't find package.json

... Update 2018 This is becoming quite a popular question and my answer (although marked as correct) is no longer valid. Please refer to Deepali's answer below: npm init Original Outdated Answer I think you forgot to setup the directory for express: express <yourdirectory&gt...
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Serializing to JSON in jQuery [duplicate]

...need to serialize an object to JSON . I'm using jQuery . Is there a "standard" way to do this? 11 Answers ...
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Given two directory trees, how can I find out which files differ by content?

... Nice. But shorter is diff -qr dir1/ dir2/ and my extended version to diff -qr dir1/ dir2/ | grep ' differ' – sobi3ch Aug 7 '15 at 13:18 1 ...