forked from daren.hsu/line_push
18 lines
420 B
JavaScript
18 lines
420 B
JavaScript
import pad from './pad';
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/**
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* @param {String} value YYYY-MM format
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* @param {Number} sign -1 or +1
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*/
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export default ((value, sign) => {
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const [year, month] = value.split('-').map(Number);
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if (month + sign === 0) {
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return `${year - 1}-12`;
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} else if (month + sign === 13) {
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return `${year + 1}-01`;
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} else {
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return `${year}-${pad(month + sign)}`;
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}
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});
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//# sourceMappingURL=monthChange.js.map
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