The for-in Statement

The for-in statement is used to enumerate the properties of an object. Here's the syntax:


for (property in expression) 
   statement

 
<!DOCTYPE html>
<html>
<head>
    <title>Example</title>
    <script type="text/javascript">
        for (var propName in window) { 
            document.write(propName); 
        } 

        
    </script>
</head>
<body>
</body>
</html>
Click to view the demo
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Statements:
  1. The if Statement
  2. The do...while Statement
  3. The while Statement
  4. The for Statement
  5. The for-in Statement
  6. Labeled Statements
  7. The break and continue Statements
  8. The with Statement
  9. The switch Statement