Plz check this code my output is right but when it over it button says undefined what is this .plz fix this code

Question

https://code.sololearn.com/Wo9MAe4FF81X/?ref=app

Answer 1

Then add an element to store the text at; a new paragraph for example. <p id="change"></p> or don't use innerHTML at all. alert(a.charAt(0)+x.slice(1));

Answer 2

alert does not return your param result

Answer 3

Separate your assignment to the button and the alert like this:
document.getElementById("demo").innerHTML = a.charAt(0)+x.slice(1);
alert(document.getElementById("demo").innerHTML);}

Answer 4

Set best answer to John Wells, he deserves it.

Answer 5

thx bro that right answer

Answer 6

can u fix this code.

Answer 7

if u don care about alert result .

you can try this
button{text-transform:capitalize;}

every 1st letter in button is capital

Answer 8

but with this my button value is changing

Answer 9

https://code.sololearn.com/Wu84RAa0Keox/?ref=app

Answer 10

javascript code
https://code.sololearn.com/W0j9v4vg0z6P/?ref=app