| 'use strict'; |
| |
| var $TypeError = require('es-errors/type'); |
| |
| var regexTester = require('safe-regex-test'); |
| |
| // https://tc39.es/ecma262/#sec-istimezoneoffsetstring |
| |
| // implementation taken from https://github.com/tc39/proposal-temporal/blob/21ee5b13f0672990c807475ba094092d19dd6dc5/polyfill/lib/ecmascript.mjs#L2140 |
| |
| var OFFSET = /^([+\u2212-])([01][0-9]|2[0-3])(?::?([0-5][0-9])(?::?([0-5][0-9])(?:[.,](\d{1,9}))?)?)?$/; |
| |
| var testOffset = regexTester(OFFSET); |
| |
| module.exports = function IsTimeZoneOffsetString(offsetString) { |
| if (typeof offsetString !== 'string') { |
| throw new $TypeError('Assertion failed: `offsetString` must be a String'); |
| } |
| return testOffset(offsetString); |
| }; |
