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Double negation (!!) in javascript - what is the purpose? [duplicate]
...ates it once, converting values like so:
undefined to true
null to true
+0 to true
-0 to true
'' to true
NaN to true
false to true
All other expressions to false
Then the other ! negates it again. A concise cast to boolean, exactly equivalent to ToBoolean simply because ! is defined as its negat...
What do these words mean in Git: Repository, fork, branch, clone, track?
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twasbrillig
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answered May 26 '10 at 22:52
nfmnfm
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Warning “Do not Access Superglobal $_POST Array Directly” on Netbeans 7.4 for PHP
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edited Nov 9 '13 at 10:40
ralight
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What is Prefix.pch file in Xcode?
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edited Jun 20 at 9:12
Community♦
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answered May 14 '14 at 7:55
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How to undo another user’s checkout in TFS?
...f workspace /delete WorkspaceName;User
/server:http://server:8080/tfs/MyTeamCollection
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Raj AdvaniRaj Advani
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