Angular2 日期管道在 IE 11 和 edge 13/14 中不起作用 [英] Angular2 date pipe does not work in IE 11 and edge 13/14

问题描述

我使用的是 Angular 2.0 final，当我在格式字符串中添加小时和分钟时，日期格式不正确:

I'm using Angular 2.0 final, and I have an incorrect format of dates when I add hours and minutes in the format string:

在组件的模板中，我有:

In the template of the component, I have:

<th id="lastexecution">{{dto.LastExecution | date:'yyyy-MM-dd HH:mm:ss'}}</th>

IE 11 中的输出日期为:

The output date in IE 11 is:

2016-09-27 15:00:9/27/2016 3:53:46 PM:9/27/2016 3:53:46 PM

有{{dto.LastExecution |日期:'yyyy-MM-dd'}}

With {{dto.LastExecution | date:'yyyy-MM-dd'}}

IE 11 中的输出日期是正确的:

The output date in IE 11 is correct:

2016-09-27

这是我在 package.json 中使用的组件版本:

Here is the components version I use in the package.json:

{
  "name": "ima_sentinel",
  "version": "1.0.0",
  "description": "QuickStart package.json from the documentation, supplemented with testing support",
  "scripts": {
    "start": "tsc && concurrently "tsc -w" "lite-server" ",
    "docker-build": "docker build -t ima_sentinel .",
    "docker": "npm run docker-build && docker run -it --rm -p 3000:3000 -p 3001:3001 ima_sentinel",
    "pree2e": "npm run webdriver:update",
    "e2e": "tsc && concurrently "http-server -s" "protractor protractor.config.js" --kill-others --success first",
    "lint": "tslint ./app/**/*.ts -t verbose",
    "lite": "lite-server",
    "postinstall": "typings install",
    "test": "tsc && concurrently "tsc -w" "karma start karma.conf.js"",
    "test-once": "tsc && karma start karma.conf.js --single-run",
    "tsc": "tsc",
    "tsc:w": "tsc -w",
    "typings": "typings",
    "webdriver:update": "webdriver-manager update"
  },
  "keywords": [],
  "author": "",
  "license": "ISC",
  "dependencies": {
    "@angular/common": "2.0.0",
    "@angular/compiler": "2.0.0",
    "@angular/core": "2.0.0",
    "@angular/forms": "2.0.0",
    "@angular/http": "2.0.0",
    "@angular/platform-browser": "2.0.0",
    "@angular/platform-browser-dynamic": "2.0.0",
    "@angular/router": "3.0.0",
    "@angular/upgrade": "2.0.0",
    "angular2-in-memory-web-api": "0.0.20",
    "bootstrap": "^3.3.6",
    "core-js": "^2.4.1",
    "linqts": "^1.6.0",
    "reflect-metadata": "^0.1.3",
    "rxjs": "5.0.0-beta.12",
    "signalr": "^2.2.1",
    "systemjs": "0.19.27",
    "typescript-collections": "^1.1.9",
    "zone.js": "^0.6.23"
  },
  "devDependencies": {
    "concurrently": "^2.2.0",
    "lite-server": "^2.2.0",
    "typescript": "^2.0.2",
    "typings": "^1.0.4",
    "canonical-path": "0.0.2",
    "http-server": "^0.9.0",
    "tslint": "^3.7.4",
    "lodash": "^4.11.1",
    "jasmine-core": "~2.4.1",
    "karma": "^1.2.0",
    "karma-chrome-launcher": "^0.2.3",
    "karma-cli": "^0.1.2",
    "karma-htmlfile-reporter": "^0.2.2",
    "karma-jasmine": "^0.3.8",
    "protractor": "^3.3.0",
    "rimraf": "^2.5.2"
  },
  "repository": {}
}

推荐答案

更新 - Angular 问题导致此问题 在 Angular 5 中得到解决.如果可以，我建议使用它来避免此问题.

UPDATE - The Angular issue that causes this issue is resolved in Angular 5. If you can, I would recommend using that to avoid this problem.

如果您仍在使用 Angular 4 或更早版本 - 作为一种解决方法，我创建了一个管道来使用 moment 格式化程序而不是 Angular 内置的:

If you are still using Angular 4 or older - as a workaround, I created a pipe to use the moment formatter instead of the Angular built-in one:

import { Pipe, PipeTransform } from '@angular/core';
import * as moment from 'moment';

@Pipe({
    name: 'datex'
})

export class DatexPipe implements PipeTransform {
    transform(value: any, format: string = ""): string {
        // Try and parse the passed value.
        var momentDate = moment(value);

        // If moment didn't understand the value, return it unformatted.
        if (!momentDate.isValid()) return value;

        // Otherwise, return the date formatted as requested.
        return momentDate.format(format);
    }
}

然后可以使用:

{{exampleDate | datex:'DD/MM/YYYY HH:mm:ss'}}

你传入的日期应该是moment可以解析的(参见相关moment文档) 并且格式字符串是一个时刻，而不是有角度的日期格式字符串，如 在此处记录.

The date you pass in should be something which moment can parse (see the relevant moment documentation) and the format string is a moment, not angular, date formatting string, as documented here.

我已经在 IE11、Chrome 和 Firefox 中对此进行了测试，并且表现一致.

I've tested this in IE11, Chrome and Firefox and it behaves consistently.

您需要确保将 moment 作为依赖项添加到您的 package.json 中，例如:

You'll need to ensure moment is added to your package.json as a dependency, e.g.:

{
  "name": "demo",
  "version": "0.0.1",
  // snip
  "dependencies": {
    // snip
    "moment": "^2.15.1",
    // snip
  },
  "devDependencies": {
    //snip
  }
}

...并确保您的 systemjs.config.js 已更新，以便它可以定位时刻:

... and ensure your systemjs.config.js is updated so it can locate moment:

map: { 
  'moment': 'npm:moment' 
} 
packages: { 
  moment: { main: './moment.js', defaultExtension: 'js' } 
}

这篇关于Angular2 日期管道在 IE 11 和 edge 13/14 中不起作用的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！