util中写个js方法

// 取当前时间的前一个周四

export const getThursday = () => {

let now = new Date();

let nowTime = now.getTime();

let today = now.getDay(); // 今天是星期几

let oneDayLong = 24*60*60*1000;

// 周五周六周日，展示本周四

let nowDay1 = new Date(nowTime - (today-4)*oneDayLong);

let year1 = nowDay1.getFullYear();

let month1 = nowDay1.getMonth()+1;

let day1 = nowDay1.getDate();

// 周一-周四，展示上周四

let nowDay2 = new Date(nowTime - (today+3)*oneDayLong);

let year2 = nowDay2.getFullYear();

let month2 = nowDay2.getMonth()+1;

let day2 = nowDay2.getDate();

let date = '';

if(today > 4 || today === 0) {

if(day1 < 10) {

date = year1 + '-' + month1 + '-' + '0' + day1;

} else {

date = year1 + '-' + month1 + '-' + day1;

}

} else {

if(day2 < 10) {

date = year2 + '-' + month2 + '-' + '0' + day2;

} else {

date = year2 + '-' + month2 + '-' + day2;

}

}

return date;

}

页面中引用

(多的不写了，在react中实现的)

// 头

import { DatePicker } from 'antd';

import * as util from '../../crm-assets/js/utils.js';

const { RangePicker } = DatePicker;

const dateFormat = 'YYYY-MM-DD';

// constructor函数，默认时间

constructor(props) {

super(props);

this.state = {

dateDefault: [moment(util.getThursday(), dateFormat), moment(util.getThursday(), dateFormat)],

}

}

// componentDidMount默认渲染

componentDidMount() {

moment.locale('zh-cn',{

day: {

dow: 5,

},

});

this.getData();

}

// 传值，getTable调用接口并返回

getData = async () => {

let date = util.getThursday();

this.setState({

startTime: date,

endTime: date,

},()=>{

this.getTable();

});

}

render() {

const { dateDefault } = this.state

return (<>

>)

}

今天是2020/12/18，星期五，前一个周四是昨天。选择器默认展示：

标签：DatePicker,const,day2,util,let,date,AntD,选择器,today

来源： https://blog.csdn.net/qq_40138556/article/details/111386502