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<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title>JavaScript array length</title> </head> <body> <pre> <!-- Use pre element for work document.writeln() method --> <script type="text/javascript"> var domain = new Array(10); // an empty array of length 10 document.writeln("length: " + domain.length); </script> </pre> </body> </html>
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