ویرایش »
<!DOCTYPE html> <html> <body> <p id="demo">Click the button to create an array, call the new ucase() method, and display the result.</p> <button onclick="myFunction()">Try it</button> <script> Array.prototype.myUcase=function() { for (i=0;i<this.length;i++) { this[i]=this[i].toUpperCase(); } } function myFunction() { var fruits = ["Banana", "Orange", "Apple", "Mango"]; fruits.myUcase(); var x=document.getElementById("demo"); x.innerHTML=fruits; } </script> </body> </html>
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