WISH: to have a function which would extend a block with a value if not yet present

Oldes / Rebol-wishes

Repository for keeping Rebol related wishes out of issues

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WISH: to have a function which would extend a block with a value if not yet present #11

Closed Oldes closed 3 years ago

Oldes commented 3 years ago

Something like alter, but only with appending (not removing value if found). Possible suitable name is supplement.. extend cannot be used as it works with key/value pairs only.