index ( obj seq -- n )
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index-from ( obj i seq -- n )

Vocabulary
sequences

Inputs

obj	an object
seq	a sequence

Outputs

n

an index

Word description
Outputs the index of the first element in the sequence equal to obj. If no element is found, outputs f.

See also
index-from, last-index, last-index-from, sorted-index

Definition

USING: kernel ;

IN: sequences

: index ( obj seq -- n ) [ = ] with find drop ;