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const lists = require('extra-lists'); var x = [['a', 'b', 'c', 'd', 'e'], [1, 1, 2, 2, 4]]; lists.count(x, v => v % 2 === 1); lists.count(x, v => v % 2 === 0);

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@extra-lists/count v2.2.10

Counts values which satisfy a test.

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