基本的javascript范围

Question

我在此代码中收到错误：

$(document).ready(function () {


    var appContainer = {
        apps: new Array()
    };


    $("funcList div").each({
       appContainer.apps.push("testing"); // this does not work, why?
    })

    appContainer.apps.push("testing");
    )


});

appContainer是否超出了每个方法的范围？ 这是我得到的错误：

感谢

Answer 1

这里有多个语法错误，如下所示，您还需要查看选择器funcList div，funcList是ID还是类，如果是，请使用适当的选择器。< / p>

$(document).ready(function () {
    var appContainer = {
        apps: new Array()
    };

    //need to pass a function as the argument here
    $("funcList div").each(function () {
        appContainer.apps.push("testing"); // this does not work, why?
    })

    //extra ) here
    appContainer.apps.push("testing");

    console.log(appContainer)
});

演示：

$(document).ready(function() {
  var appContainer = {
    apps: new Array()
  };

  //need to pass a function as the argument here
  $("funcList div").each(function() {
    appContainer.apps.push("testing"); // this does not work, why?
  })

  //extra ) here
  appContainer.apps.push("testing");

  console.log(appContainer)
});

<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js"></script>
<funcList>
  <div></div>
  <div></div>
</funcList>