JavaScript 日期构造函数和 UTC

Question

如果我使用new Date('2015-01-01')，这会给我一个相当于2015-01-01T00:00:00Z的时间点>?

Answer 1

来自documentation :

constructors: ... dateString String value representing a date. The string should be in a format recognized by the Date.parse() method (IETF-compliant RFC 2822 timestamps and also a version of ISO8601).

来自documentation on Date.parse() :

If a time zone is not specified and the string is in an ISO format recognized by ES5, UTC is assumed

但是，依赖此行为可能存在风险，因为来自同一文档:

note that ECMAScript ed 6 draft specifies that date time strings without a time zone are to be treated as local, not UTC