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Is there some way to PUSH data from web server to browser?

Of course I am aware of Ajax, but the problem with Ajax is that the browser should poll the server frequently to find whether there is new data. This increases server load. ...
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What does “=>” mean in PHP?

...the separator for associative arrays. In the context of that foreach loop, it assigns the key of the array to $user and the value to $pass. Example: $user_list = array( 'dave' => 'apassword', 'steve' => 'secr3t' ); foreach ($user_list as $user => $pass) { echo "{$user}'s pass...
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Can I make a not submit a form?

I've got a form, with 2 buttons 8 Answers 8 ...
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How can you run a command in bash over until success

...llowing 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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How to check command line parameter in “.bat” file?

...ne parameter then I will do something. I have created following .bat file. It works for -b and not-equal to -b cases - but it fails when user does not pass any command-line parameter. ...
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Mockito How to mock only the call of a method of the superclass

I'm using Mockito in some tests. 7 Answers 7 ...
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Preferred method to store PHP arrays (json_encode vs serialize)

...for caching purposes. I might occasionally come across the need to convert it to JSON for use in my web app but the vast majority of the time I will be using the array directly in PHP. ...
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How to find the foreach index?

Is it possible to find the foreach index? 13 Answers 13 ...
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How to get element by class name? [duplicate]

...you need the return object as an array, you can do that easily, because of its magic length property: var arrFromList = Array.prototype.slice.call(y); //or as per AntonB's comment: var arrFromList = [].slice.call(y); As yckart suggested querySelector('.foo') and querySelectorAll('.foo') would be ...
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Can anyone explain IEnumerable and IEnumerator to me? [closed]

... for example, when to use it over foreach? You don't use IEnumerable "over" foreach. Implementing IEnumerable makes using foreach possible. When you write code like: foreach (Foo bar in baz) { ... } it's functionally equivalent to writing: ...