This method checks if the string starts with substring.
string.startsWith(substring);
<html> <head> <title>Prototype examples</title> <script type="text/javascript" src="/javascript/prototype.js"> </script> <script> function showResult(){ var str = "Prototype JavaScript"; alert ("First Check : " + str.startsWith("JavaScript") ); alert ("Second Check : " + str.startsWith("Prototype") ); } </script> </head> <body> <p>Click the button to see the result.</p> <br /> <br /> <input type="button" value="Result" onclick="showResult();"/> </body> </html>
To understand it in better way you can Try it yourself.
Advertisement