NodeJs获取两个日期间的所有日期

 1 const moment = require( 'moment' );
 2 
 3 const begin_date = '2017-12-12',
 4     end_date = '2018-01-19',
 5     arr = getAllDays( begin_date, end_date );
 6 
 7 console.log( 'arr: ', arr );
 8 
 9 function getAllDays( begin_date, end_date ) {
10     const errArr = [],
11         resultArr = [],
12         dateReg = /^[2]d{3}-[01]d-[0123]d$/;
13 
14     if ( typeof begin_date !== 'string' || begin_date === '' || !dateReg.test( begin_date ) ) {
15         return errArr;
16     }
17 
18     if ( typeof end_date !== 'string' || end_date === '' || !dateReg.test( end_date ) ) {
19         return errArr;
20     }
21 
22     try {
23         const beginTimestamp = Date.parse( new Date( begin_date ) ),
24             endTimestamp = Date.parse( new Date( end_date ) );
25 
26         // 开始日期小于结束日期
27         if ( beginTimestamp > endTimestamp ) {
28             return errArr;
29         }
30 
31         // 开始日期等于结束日期
32         if ( beginTimestamp === endTimestamp ) {
33             resultArr.push( begin_date );
34             return resultArr;
35         }
36 
37         let tempTimestamp = beginTimestamp,
38             tempDate = begin_date;
39 
40 
41         // 新增日期是否和结束日期相等， 相等跳出循环
42         while ( tempTimestamp !== endTimestamp ) {
43             resultArr.push( tempDate );
44 
45             // 增加一天
46             tempDate = moment( tempTimestamp )
47                 .add( 1, 'd' )
48                 .format( 'YYYY-MM-DD' );
49 
50             // 将增加时间变为时间戳
51             tempTimestamp = Date.parse( new Date( tempDate ) );
52         }
53 
54         // 将最后一天放入数组
55         resultArr.push( end_date );
56         return resultArr;
57 
58     } catch ( err ) {
59         return errArr;
60     }
61 }