Question

在require("Photo Gallery/includes/PHPMailer/PHPMailerAutoload.php"); $mail = new PHPMailer(); $mail->IsSMTP(); $mail->Host = "smtp.gmail.com"; $mail->Port = 465; $mail->SMTPAuth = true; $mail->SMTPSecure = 'ssl'; $mail->Username = "aldemeery@gmail.com"; $mail->Password = "*********"; $mail->From = "aldemeery@gmail.com"; $mail->AddAddress("aldemeery@gmail.com"); $mail->Subject = "Subject"; $mail->Body = "Hi!"; if(!$mail->Send()) { echo 'Message was not sent.'; echo 'Mailer error: ' . $mail->ErrorInfo; } else { echo 'Message has been sent.'; }网站上关注ES5快速入门后，我得到了以下内容：

movieclip.addEventListener(MouseEvent.MOUSE_DOWN, onMcClick);
function onMcClick(e:MouseEvent):void
{
    var target:MovieClip = e.currentTarget as MovieClip;
    movieclip = target;
}

var speed:Number = 1.0;
var leftArrow:Boolean=false;
var rightArrow:Boolean=false;
var upArrow:Boolean=false;
var downArrow:Boolean=false;

addEventListener(Event.ENTER_FRAME, moveObject);

stage.addEventListener(KeyboardEvent.KEY_DOWN, keyHit);
stage.addEventListener(KeyboardEvent.KEY_UP, noKeyHit);

function keyHit(e:KeyboardEvent):void
{
    if(e.keyCode == Keyboard.LEFT) leftArrow = true;
    if(e.keyCode == Keyboard.RIGHT) rightArrow = true;
    if(e.keyCode == Keyboard.UP) upArrow = true;
    if(e.keyCode == Keyboard.DOWN) downArrow = true;
}


function noKeyHit2(e:KeyboardEvent):void
{
    if(e.keyCode == Keyboard.LEFT) leftArrow = false; 
    if(e.keyCode == Keyboard.RIGHT) rightArrow = false; 
    if(e.keyCode == Keyboard.UP) upArrow = false;
    if(e.keyCode == Keyboard.DOWN) downArrow = false;
}

function moveObject(e:Event):void
{
    if(leftArrow) movieclip.rotation -=0.75;
    if(rightArrow) movieclip.rotation +=0.75;
    if(upArrow) movieclip.scaleY +=0.01
    if(downArrow) movieclip.scaleY -=0.01;
}

我想知道如何为正确的Angular 2换出.Class方法但不使用mycomponent = ng.core.Component({ ... }) .Class({ constructor: function() {} });（因为它们还不是ES标准的一部分）

Answer 1

您可以使用annotations类的ComponentMetadata属性的getter，如下所述：

import {ComponentMetadata,Inject} from 'angular2/core';
import {FormBuilder} from 'angular2/common';

export class AppComponent {
  constructor(fb) {
    console.log(fb);
  }

  static get parameters() {
    return [[FormBuilder]];
  }

  static get annotations() {
    return [
      new ComponentMetadata({
        selector: 'my-app',
        template: `
          <div>
            Test
          </div>
        `
      })
    ];
  }
}

请参阅此plunkr：https://plnkr.co/edit/VqDSDuroK29iAxGzA5Lc?p=preview

您可以注意到像Babel这样的工具支持装饰器。

如何在没有装饰器的情况下使用Angular2和ES6？

1 个答案: