How to get a new sequence from an old sequence, the elements of the

Question

Asked: May 31, 20262026-05-31T20:35:07+00:00 2026-05-31T20:35:07+00:00

How to get a new sequence from an old sequence, the elements of the new one are from the old one until a condition is met

Suppose the condition is #(> % 0)

‘(1 2 3 0 3 2 0 1) returns 1, 2, 3

‘(0 1 2 3) returns empty seq

‘(1 2 3) returns everything.

Note it’s not same as filter.

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Editorial Team · Answer 1 · 2026-05-31T20:35:09+00:00

Editorial Team

You probably want to use take-while:

(take-while #(> % 0) '(1 2 3 0 3 2 0 1))
=> (1 2 3)

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