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on click button not working. Could you please help me in identifying the bug

K

Kiriti

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Nov 19, 2022
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<!DOCTYPE html>
<html>
<head>
<title>program 1a</title>
</head>
<body style="background-color:green">
<h2>when you click on press me it will change text</h2>
<p id="Demo">Gokaraju</p>
<button onclick="Change text()">click me
</button>
<script>
function "Change text()"
{
if(document.getElementById("Demo").innerHTML="Gokaraju");
{
document.getElementById("Demo").innerHTML="2nd CSE A");
}
else
{
document.getElementById("Demo").innerHTML="Siva";
}
}
</script>
</body>
</html>
 
Change text() is a method. Syntax is wrong. Use or name it properly. myFunction() or changeText() which ever suits you. Into your coding.

<script>
function myFunction() {
document.getElementById("demo").innerHTML = "Hello World"; //or something else. Add your own words. It is not a conditional statement.
}
</script>
What I mean?
 
What you wanted was 3 choices. Gokaraju, 2nd CSE A, and Siva when pressed three times. Then you need to write it differently. Value returns to the original text or null because a space in memory is being used. The next option. 2nd CSE A. Now it's conditional. Try this in your script.

Code: 
// declaring a value
//like that

let i = 0;
let text = " "; //add the names here.  2nd name.  ,  ... and so on.
for (; i < text; i++) { 
  text += text;
} //end for loop

Bottom is another writing.  You can write it any variations.

x[1]=" "
x[2]=" "
x[3]=" "

for (let i = 0; i < x;  i++) { 
   i;
} //end loop

So for 4 values of i. 1 for null. So the program repeats itself. Pressing it three times.
 
Last edited:
Here is the final code
Code: 
<body>
<p id="Demo">
<button onclick="changeText()"> click me </button>
<script>
function changeText();
let i=0;
let text=" Gokaraju" , " 2nd CSE A ", " Siva";
for( i; i < text ; i++)  {
text += text;
} //end loop
document.getElementByid("Demo").innerHTML(text);
</script>
</p>
</body>

Press it 3 times for all names

output is:

Gokaraju
2nd CSE A
Siva
 
Last edited:
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