21 lines
414 B
JavaScript
21 lines
414 B
JavaScript
'use strict'
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function constEq(a, b) {
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if (a.length !== b.length) {
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return false
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}
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let zero = 0
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for (let i = 0; i < a.length; i++) {
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zero |= a.charCodeAt(i) ^ b.charCodeAt(i)
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}
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return zero === 0
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}
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function makeSecretIsValid(shieldsSecret) {
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return function secretIsValid(secret = '') {
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return shieldsSecret && constEq(secret, shieldsSecret)
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}
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}
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module.exports = { makeSecretIsValid }
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