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1import { FORMAT_DEFAULT } from '../../constant';
2export default (function (o, c) {
3 // locale needed later
4 var proto = c.prototype;
5 var oldFormat = proto.format; // extend en locale here
6
7 proto.format = function (formatStr) {
8 var _this = this;
9
10 var yearBias = 543;
11 var str = formatStr || FORMAT_DEFAULT;
12 var result = str.replace(/(\[[^\]]+])|BBBB|BB/g, function (match, a) {
13 var _this$$utils;
14
15 var year = String(_this.$y + yearBias);
16 var args = match === 'BB' ? [year.slice(-2), 2] : [year, 4];
17 return a || (_this$$utils = _this.$utils()).s.apply(_this$$utils, args.concat(['0']));
18 });
19 return oldFormat.bind(this)(result);
20 };
21});
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