monthChange.ts at 6ac659b ⋅ vuetifyjs/vuetify

import pad from './pad'

/**
 * @param {String} value YYYY-MM format
 * @param {Number} sign -1 or +1
 */
export default (value: string, sign: number) => {
  const [year, month] = value.split('-').map(Number)

  if (month + sign === 0) {
    return `${year - 1}-12`
  } else if (month + sign === 13) {
    return `${year + 1}-01`
  } else {
    return `${year}-${pad(month + sign)}`
  }
}

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1	1	import pad from './pad'
2
3		/**
4		* @param {String} value YYYY-MM format
5		* @param {Number} sign -1 or +1
6		*/
7	1	export default (value: string, sign: number) => {
8	1	const [year, month] = value.split('-').map(Number)
9
10	1	if (month + sign === 0) {
11	1	return `${year - 1}-12`
12	1	} else if (month + sign === 13) {
13	1	return `${year + 1}-01`
14		} else {
15	1	return `${year}-${pad(month + sign)}`
16		}
17		}