Interactive help: Difference between revisions
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(Pressing ? at that last prompt would re-display the text just shown.) |
(Pressing ? at that last prompt would re-display the text just shown.) |
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=={{header|Racket}}== |
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In the command line, <code>raco docs <optional-query></code> will open internet browser and show locally-built Racket docs (main Racket and and any packages locally installed). |
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In the Racket REPL, <code>help</code> or <code>(help <optional-query>)</code> functions similar to <code>raco docs</code>. Note that if the query is an identifier, <code>help</code> will be able to extract lexical information attached to the identifier, resulting in a precise documentation lookup. |
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In Racket file, <code>help</code> could be obtained by <code>(require racket/help)</code> |
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=={{header|REXX}}== |
=={{header|REXX}}== |
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