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wsemi

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A support package for web developer.

35 lines (28 loc) 659 B
import ot from 'dayjs' import isestr from './isestr.mjs' /** * 判斷是否為月時間 * * Unit Test: {@link https://github.com/yuda-lyu/wsemi/blob/master/test/ismonth.test.mjs Github} * @memberOf wsemi * @param {String} v 輸入月時間字串 * @returns {Boolean} 回傳是否為月時間布林值 * @example * * console.log(ismonth('2019-01-01')) * // => false * * console.log(ismonth('2019-01')) * // => true * */ function ismonth(v) { //check if (!isestr(v)) { return false } let ft = 'YYYY-MM' let m = ot(v, ft).format(ft) return (v === m) } export default ismonth