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<!DOCTYPE html> <html> <head> <title>With pop method, empty array in Javascript</title> <meta http-equiv="Content-Type" content="text/html; charset=utf-8"> </head> <body> <div>With pop() method</div> <div id="result"></div> <script> var arr = ['a','b','c','d','e','f']; while(arr.length > 0) { arr.pop(); } console.log(arr); // Output [] document.getElementById("result").innerHTML = "length: " + arr.length; </script> </body> </html>