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[REBOL] Re: How to use Hash index

From: greggirwin:mindspring at: 22-Aug-2003 9:48

Hi Thorsten, TM> is there anybody out there who can shortly describe to me how hash is TM> working and how to use it in rebol. A little sample with nestedt blocks TM> would be nice. A hash! works like a block!, but is much faster for lookups. One difference is that there is no direct "lexical" format for hash! values; you have to convert other block values to them or use "make hash!"
>> h: make hash! [A [a b c] B [1 2 3] C [! * ~]]
== make hash! [A [a b c] B [1 2 3] C [! * ~]]
>> h/b
== [1 2 3]
>> h/b: [4 5 6]
== make hash! [A [a b c] B [4 5 6] C [! * ~]] Does that help? -- Gregg