HHAromeMiniProgramDemo/node_modules/antd-mini/es/TabBar/index.js

import { TabBarDefaultProps } from './props';
import fmtEvent from '../_util/fmtEvent';
import mixinValue from '../mixins/value';
import '../_util/assert-component2';
Component({
    props: TabBarDefaultProps,
    mixins: [
        mixinValue({
            valueKey: 'current',
            defaultValueKey: 'defaultCurrent',
        }),
    ],
    methods: {
        onChange: function (e) {
            var index = e.target.dataset.index;
            var onChange = this.props.onChange;
            if (index === this.getValue()) {
                return;
            }
            if (!this.isControlled()) {
                this.update(index);
            }
            if (onChange) {
                onChange(index, fmtEvent(this.props, e));
            }
        },
    },
});