什么是检查值是否为有效日期的简单方法,允许任何已知的日期格式。
例如,我有值10-11-2009, 10/11/2009,2009-11-10T07:00:00+0000它们都应该被识别为日期值,而值200, 10, 350,不应该被识别为日期值。如果可能的话,最简单的检查方法是什么?因为时间戳也是允许的。
10-11-2009
10/11/2009
2009-11-10T07:00:00+0000
200
10
350
够了吗 Date.parse() ?
Date.parse()
请参阅其相关的MDN 文档页面。
Date.parse如果字符串日期有效,则返回时间戳。以下是一些用例:
Date.parse
// /!\ from now (2021) date interpretation changes a lot depending on the browser Date.parse('01 Jan 1901 00:00:00 GMT') // -2177452800000 Date.parse('01/01/2012') // 1325372400000 Date.parse('153') // NaN (firefox) -57338928561000 (chrome) Date.parse('string') // NaN Date.parse(1) // NaN (firefox) 978303600000 (chrome) Date.parse(1000) // -30610224000000 from 1000 it seems to be treated as year Date.parse(1000, 12, 12) // -30610224000000 but days and month are not taken in account like in new Date(year, month,day...) Date.parse(new Date(1970, 1, 0)) // 2588400000 // update with edge cases from comments Date.parse('4.3') // NaN (firefox) 986248800000 (chrome) Date.parse('2013-02-31') // NaN (firefox) 1362268800000 (chrome) Date.parse("My Name 8") // NaN (firefox) 996616800000 (chrome)