Returns the key of the nth header field for the object referred to by the specified url connection object.
Syntax
getHeaderFieldKey( urlconnection , index )
urlconnection.getHeaderFieldKey( index )
Parameters
urlconnection
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the url connection object to use.
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index
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the header field offset.
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Returns
string
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the key of the specified header field.
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Example
key = ucon.getHeaderFieldKey( fld )
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