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How do I remove objects from a JavaScript associative array?

...ie. an array with a missing index). When working with instances of Array, if you do not want to create a sparsely populated array - and you usually don't - then you should use Array#splice or Array#pop. Note that the delete operator in JavaScript does not directly free memory. Its purpose is to re...
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How to do ssh with a timeout in a script?

...g via password-less SSH on a remote host. I want to set a timeout, so that if the remote host is taking an infinite time to run, I want to come out of that ssh session and continue other lines in my sh script. ...
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What is the difference between the add and offer methods in a Queue in Java?

... I guess the difference is in the contract, that when element can not be added to collection the add method throws an exception and offer doesn't. From: http://java.sun.com/j2se/1.5.0/docs/api/java/util/Collection.html#add%28E%29 If a...
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Is there a way to check if int is legal enum in C#?

... Check out Enum.IsDefined Usage: if(Enum.IsDefined(typeof(MyEnum), value)) MyEnum a = (MyEnum)value; This is the example from that page: using System; [Flags] public enum PetType { None = 0, Dog = 1, Cat = 2, Rodent = 4, Bird = 8, Reptile = 16...
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Validate a username and password against Active Directory?

...e a username and password against Active Directory? I simply want to check if a username and password are correct. 13 Answe...
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Testing the type of a DOM element in JavaScript

...M element. In that case, use the elem.tagName or elem.nodeName property. if you want to get really creative, you can use a dictionary of tagnames and anonymous closures instead if a switch or if/else. share | ...
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How do I close an open port from the terminal on the Mac?

...w do i close this port after I am done? and also which command can show me if port open or closed? 12 Answers ...
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How to create new folder? [duplicate]

I want to put output information of my program to a folder. if given folder does not exist, then the program should create a new folder with folder name as given in the program. Is this possible? If yes, please let me know how. ...
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Check whether a value is a number in JavaScript or jQuery [duplicate]

... "!isNaN(+n) && isFinite(n)" classifies the empty string as a number – thenickdude Aug 29 '13 at 3:03 3 ...
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Correct way to check if a type is Nullable [duplicate]

In order to check if a Type ( propertyType ) is nullable, I'm using: 2 Answers 2 ...