Revision: 10954
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at January 19, 2009 08:39 by tonic
Initial Code
var foo = "bar"; if ( typeof( window[ 'foo' ] ) != "undefined" ) { document.write("foo is defined") } else { document.write("foo is undefined") }
Initial URL
http://www.rgagnon.com/jsdetails/js-0112.html
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Test if variable exists
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JavaScript