Assert method : assert « Development « JavaScript Tutorial

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JavaScript Tutorial » Development » assert

4. 1. 1. Assert method


<html>

<head>

<title>Debug Example</title>

<script type="text/javascript">

  function assert(bCondition, sErrorMessage) {

      if (!bCondition) {

          alert(sErrorMessage);

          throw new Error(sErrorMessage);

      }

  }





  function aFunction(i) {

      assert(false, "1==2");

  }



  aFunction(1);





</script>

</head>

<body>

    <P>This page uses assertions to throw a custom JavaScript error.</p>

</body>

</html>

4. 1. assert
	4. 1. 1.	Assert method
	4. 1. 2.	Catch exception throwed from assert function

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