Page 276 - Web Applications (803) Class 12
P. 276

else

                                       nstr += “#”;
                               }//for loop ends

                               // Display the length and the modified string in an alert box
                        alert(“Length of the string: “ + length + “\nModified string: “ + nstr);

                           }

                       </script>
                   </body>
                   </html>
                    Output:

























                9.   Write a function in JavaScript that displays a prompt box which accepts a name and displays a greeting “Welcome
                    <name>!” in a paragraph which has an id “W1”.

               Ans.  <!DOCTYPE html>
                   <html>

                   <head>
                       <title>Display Greeting</title>

                   </head>
                   <body bgcolor=”red” text=”white”>

                       <h1>Display Greeting</h1>
                       <button onclick=”display()”>Click Here</button>

                       <p id=”W1”></p>
                       <script>

                           function display() {
                               var tname = prompt(“Enter your name:”);

                               if (tname !== null) {



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