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@extra-array/is-prefix

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Checks if array starts with a prefix.

11 lines (6 loc) 239 B
const array = require('extra-array'); var x = [1, 2, 3, 4]; array.isPrefix(x, [1, 2]); array.isPrefix(x, [-1, -2]); array.isPrefix(x, [-1, -2], (a, b) => Math.abs(a) - Math.abs(b)); array.isPrefix(x, [-1, -2], null, v => Math.abs(v));