如何将moment js datetime转换为string，反之亦然

我使用计算日期时间

datetime_from_moment = moment.utc().utcOffset('+0530')

然后将其转换为字符串，以便我可以将它保存到firebase实时数据库，如下所示：

datetime_from_moment_string = datetime_from_moment.toString()

一段时间后，我从数据库中获取该日期时间（以字符串格式）进行一些计算。要进行这些计算，我必须将该字符串转换为时刻类型。我该怎么做呢？

字符串类型的时刻日期时间看起来像这个Fri Mar 01 2019 22:07:56 GMT+0530

为了转换它我做这个datetime_converted = moment(datetime_from_moment_string)

但我得到这个错误：

Deprecation warning: value provided is not in a recognized RFC2822 or ISO format. moment construction falls back to js Date(), which is not reliable across all browsers and versions. Non RFC2822/ISO date formats are discouraged and will be removed in an upcoming major release. Please refer to / for more info.
Arguments:
[0] _isAMomentObject: true, _isUTC: false, _useUTC: false, _l: undefined, _i: Fri Mar 01 2019 22:10:42 GMT+0530, _f: undefined, _strict: undefined, _locale: [object Object]
Error
    at Function.createFromInputFallback (E:\workspace_javascript\testingProject\node_modules\moment\moment.js:320:98)
    at configFromString (E:\workspace_javascript\testingProject\node_modules\moment\moment.js:2368:15)
    at configFromInput (E:\workspace_javascript\testingProject\node_modules\moment\moment.js:2594:13)
    at prepareConfig (E:\workspace_javascript\testingProject\node_modules\moment\moment.js:2577:13)
    at createFromConfig (E:\workspace_javascript\testingProject\node_modules\moment\moment.js:2544:44)
    at createLocalOrUTC (E:\workspace_javascript\testingProject\node_modules\moment\moment.js:2631:16)
    at createLocal (E:\workspace_javascript\testingProject\node_modules\moment\moment.js:2635:16)
    at hooks (E:\workspace_javascript\testingProject\node_modules\moment\moment.js:12:29)
    at Object.<anonymous> (E:\workspace_javascript\testingProject\index.js:58:26)
    at Module._compile (internal/modules/cjs/loader.js:688:30)

您需要仔细构建格式字符串。如果你更好地格式化DateTime字符串，这会容易得多。但是如果你提供了什么，我认为这应该有效。

moment("Fri Mar 01 2019 22:07:56 GMT+0530").format('dddd MMMM Do YYYY HH:mm:ss Z');

http://jsfiddle/qp8xfgkc/

如何将moment js datetime转换为string，反之亦然

我使用计算日期时间

datetime_from_moment = moment.utc().utcOffset('+0530')

然后将其转换为字符串，以便我可以将它保存到firebase实时数据库，如下所示：

datetime_from_moment_string = datetime_from_moment.toString()

一段时间后，我从数据库中获取该日期时间（以字符串格式）进行一些计算。要进行这些计算，我必须将该字符串转换为时刻类型。我该怎么做呢？

字符串类型的时刻日期时间看起来像这个Fri Mar 01 2019 22:07:56 GMT+0530

为了转换它我做这个datetime_converted = moment(datetime_from_moment_string)

但我得到这个错误：

Deprecation warning: value provided is not in a recognized RFC2822 or ISO format. moment construction falls back to js Date(), which is not reliable across all browsers and versions. Non RFC2822/ISO date formats are discouraged and will be removed in an upcoming major release. Please refer to / for more info.
Arguments:
[0] _isAMomentObject: true, _isUTC: false, _useUTC: false, _l: undefined, _i: Fri Mar 01 2019 22:10:42 GMT+0530, _f: undefined, _strict: undefined, _locale: [object Object]
Error
    at Function.createFromInputFallback (E:\workspace_javascript\testingProject\node_modules\moment\moment.js:320:98)
    at configFromString (E:\workspace_javascript\testingProject\node_modules\moment\moment.js:2368:15)
    at configFromInput (E:\workspace_javascript\testingProject\node_modules\moment\moment.js:2594:13)
    at prepareConfig (E:\workspace_javascript\testingProject\node_modules\moment\moment.js:2577:13)
    at createFromConfig (E:\workspace_javascript\testingProject\node_modules\moment\moment.js:2544:44)
    at createLocalOrUTC (E:\workspace_javascript\testingProject\node_modules\moment\moment.js:2631:16)
    at createLocal (E:\workspace_javascript\testingProject\node_modules\moment\moment.js:2635:16)
    at hooks (E:\workspace_javascript\testingProject\node_modules\moment\moment.js:12:29)
    at Object.<anonymous> (E:\workspace_javascript\testingProject\index.js:58:26)
    at Module._compile (internal/modules/cjs/loader.js:688:30)

您需要仔细构建格式字符串。如果你更好地格式化DateTime字符串，这会容易得多。但是如果你提供了什么，我认为这应该有效。

moment("Fri Mar 01 2019 22:07:56 GMT+0530").format('dddd MMMM Do YYYY HH:mm:ss Z');

http://jsfiddle/qp8xfgkc/