如何绑定事件并使用apply / call来更改范围

Question

The code passed to eventually never returned normally. Attempted 369 times over 40.110734904 seconds. Last failure message: Index: 0, Size: 0.
ScalaTestFailureLocation: LoadPrePaidSpec at (LoadPrePaidSpec.scala:43)
org.scalatest.exceptions.TestFailedDueToTimeoutException: The code passed to eventually never returned normally. Attempted 369 times over 40.110734904 seconds. Last failure message: Index: 0, Size: 0.
    at org.scalatest.concurrent.Eventually$class.tryTryAgain$1(Eventually.scala:420)
    at org.scalatest.concurrent.Eventually$class.eventually(Eventually.scala:438)
    at LoadPrePaidSpec.eventually(LoadPrePaidSpec.scala:17)
    at LoadPrePaidSpec.memberHelper(LoadPrePaidSpec.scala:43)
    at LoadPrePaidSpec$$anonfun$1$$anonfun$apply$mcV$sp$1.apply(LoadPrePaidSpec.scala:70)
    at LoadPrePaidSpec$$anonfun$1$$anonfun$apply$mcV$sp$1.apply(LoadPrePaidSpec.scala:70)
    at scala.collection.immutable.List.foreach(List.scala:383)
    at LoadPrePaidSpec$$anonfun$1.apply$mcV$sp(LoadPrePaidSpec.scala:70)
    at LoadPrePaidSpec$$anonfun$1.apply(LoadPrePaidSpec.scala:54)
    at LoadPrePaidSpec$$anonfun$1.apply(LoadPrePaidSpec.scala:54)
    at org.scalatest.Transformer$$anonfun$apply$1.apply$mcV$sp(Transformer.scala:22)
    at org.scalatest.OutcomeOf$class.outcomeOf(OutcomeOf.scala:85)
    at org.scalatest.OutcomeOf$.outcomeOf(OutcomeOf.scala:104)
    at org.scalatest.Transformer.apply(Transformer.scala:22)
    at org.scalatest.Transformer.apply(Transformer.scala:20)
    at org.scalatest.FlatSpecLike$$anon$1.apply(FlatSpecLike.scala:1647)
    at org.scalatest.Suite$class.withFixture(Suite.scala:1122)
    at org.scalatest.FlatSpec.withFixture(FlatSpec.scala:1683)
    at org.scalatest.FlatSpecLike$class.invokeWithFixture$1(FlatSpecLike.scala:1644)
    at org.scalatest.FlatSpecLike$$anonfun$runTest$1.apply(FlatSpecLike.scala:1656)
    at org.scalatest.FlatSpecLike$$anonfun$runTest$1.apply(FlatSpecLike.scala:1656)
    at org.scalatest.SuperEngine.runTestImpl(Engine.scala:306)
    at org.scalatest.FlatSpecLike$class.runTest(FlatSpecLike.scala:1656)
    at org.scalatest.FlatSpec.runTest(FlatSpec.scala:1683)
    at org.scalatest.FlatSpecLike$$anonfun$runTests$1.apply(FlatSpecLike.scala:1714)
    at org.scalatest.FlatSpecLike$$anonfun$runTests$1.apply(FlatSpecLike.scala:1714)
    at org.scalatest.SuperEngine$$anonfun$traverseSubNodes$1$1.apply(Engine.scala:413)
    at org.scalatest.SuperEngine$$anonfun$traverseSubNodes$1$1.apply(Engine.scala:401)
    at scala.collection.immutable.List.foreach(List.scala:383)
    at org.scalatest.SuperEngine.traverseSubNodes$1(Engine.scala:401)
    at org.scalatest.SuperEngine.org$scalatest$SuperEngine$$runTestsInBranch(Engine.scala:390)
    at org.scalatest.SuperEngine$$anonfun$traverseSubNodes$1$1.apply(Engine.scala:427)
    at org.scalatest.SuperEngine$$anonfun$traverseSubNodes$1$1.apply(Engine.scala:401)
    at scala.collection.immutable.List.foreach(List.scala:383)
    at org.scalatest.SuperEngine.traverseSubNodes$1(Engine.scala:401)
    at org.scalatest.SuperEngine.org$scalatest$SuperEngine$$runTestsInBranch(Engine.scala:396)
    at org.scalatest.SuperEngine.runTestsImpl(Engine.scala:483)
    at org.scalatest.FlatSpecLike$class.runTests(FlatSpecLike.scala:1714)
    at org.scalatest.FlatSpec.runTests(FlatSpec.scala:1683)
    at org.scalatest.Suite$class.run(Suite.scala:1424)
    at org.scalatest.FlatSpec.org$scalatest$FlatSpecLike$$super$run(FlatSpec.scala:1683)
    at org.scalatest.FlatSpecLike$$anonfun$run$1.apply(FlatSpecLike.scala:1760)
    at org.scalatest.FlatSpecLike$$anonfun$run$1.apply(FlatSpecLike.scala:1760)
    at org.scalatest.SuperEngine.runImpl(Engine.scala:545)
    at org.scalatest.FlatSpecLike$class.run(FlatSpecLike.scala:1760)
    at org.scalatest.FlatSpec.run(FlatSpec.scala:1683)
    at org.scalatest.tools.SuiteRunner.run(SuiteRunner.scala:55)
    at org.scalatest.tools.Runner$$anonfun$doRunRunRunDaDoRunRun$3.apply(Runner.scala:2563)
    at org.scalatest.tools.Runner$$anonfun$doRunRunRunDaDoRunRun$3.apply(Runner.scala:2557)
    at scala.collection.immutable.List.foreach(List.scala:383)
    at org.scalatest.tools.Runner$.doRunRunRunDaDoRunRun(Runner.scala:2557)
    at org.scalatest.tools.Runner$$anonfun$runOptionallyWithPassFailReporter$2.apply(Runner.scala:1044)
    at org.scalatest.tools.Runner$$anonfun$runOptionallyWithPassFailReporter$2.apply(Runner.scala:1043)
    at org.scalatest.tools.Runner$.withClassLoaderAndDispatchReporter(Runner.scala:2722)
    at org.scalatest.tools.Runner$.runOptionallyWithPassFailReporter(Runner.scala:1043)
    at org.scalatest.tools.Runner$.run(Runner.scala:883)
    at org.scalatest.tools.Runner.run(Runner.scala)
    at org.jetbrains.plugins.scala.testingSupport.scalaTest.ScalaTestRunner.runScalaTest2(ScalaTestRunner.java:138)
    at org.jetbrains.plugins.scala.testingSupport.scalaTest.ScalaTestRunner.main(ScalaTestRunner.java:28)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:497)
    at com.intellij.rt.execution.application.AppMain.main(AppMain.java:140)
Caused by: java.lang.IndexOutOfBoundsException: Index: 0, Size: 0
    at java.util.ArrayList.rangeCheck(ArrayList.java:653)
    at java.util.ArrayList.get(ArrayList.java:429)
    at LoadPrePaidSpec$$anonfun$memberHelper$1.apply$mcV$sp(LoadPrePaidSpec.scala:45)
    at LoadPrePaidSpec$$anonfun$memberHelper$1.apply(LoadPrePaidSpec.scala:43)
    at LoadPrePaidSpec$$anonfun$memberHelper$1.apply(LoadPrePaidSpec.scala:43)
    at org.scalatest.concurrent.Eventually$class.makeAValiantAttempt$1(Eventually.scala:394)
    at org.scalatest.concurrent.Eventually$class.tryTryAgain$1(Eventually.scala:408)
    ... 63 more

我有这个脚本，但还没有工作，我不能告诉你一个有效的例子，因为它没有准备好，我先组织代码。

+function ($) { 'use strict'; var popup = { init: function(element) { this._active = 'products__popup--active'; this._product = $('.products__popup'); this._element = $('[data-popup-to]'); this._TIME = 500; popup.attachEvt(); }, attachEvt: function() { var that = this; that._element.bind('click', popup.handlerEvt.call(that)); }, handlerEvt: function() { console.log(this); console.log('test'); } }; $(window).on('load', function() { popup.init(); }); }(jQuery); 函数存在问题，我想在其中调用我的对象的另一个函数，此函数将绑定attachEvt中的单击，但我希望传递给{ {1}} that._element（被点击的元素）和handlerEvt（对象）的范围，但这不起作用：

this

我只是传递了该范围，当脚本加载时，将点击该元素而不点击，我想避免这种情况......这是可能的吗？

更新：

恢复：

我希望能够在that函数中使用对象的范围（那个）和被点击的元素（this）的范围，但是在脚本加载时没有使事件单击..：B

Answer 1

尝试使用.bind()，this设置为that._element，that作为参数传递给handlerEvent。请注意handlerEvent的参数顺序：obj：that首先，evt event对象秒

＆＃13;

＆＃13;

+function ($) {
  'use strict';

  var popup = {
    init: function(element) {
      this._active = 'products__popup--active';
      this._product = $('.products__popup');
      this._element = $('[data-popup-to]');
      this._TIME = 500;

      popup.attachEvt();
    },

    attachEvt: function() {
      var that = this;

      that._element.bind('click', popup.handlerEvt.bind(that._element, that));
    },

    handlerEvt: function(obj, evt) {
      console.log(evt, obj, this);
      console.log('test');
    }
  };

  $(window).on('load', function() {
    popup.init();    
  });

}(jQuery);

＆＃13;

<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js"></script>
<div data-popup-to="true">click</div>

＆＃13;

＆＃13;

＆＃13;