Javascript with an error message

[toplisek]

I try to fix Javascript error:
How to manage this as it is reported missed ; character.

var checkbox = document.querySelector('input[name=theme]');

checkbox.addEventListener('change', function()
 {
 if(this.checked) {
 trans()
 document.documentElement.setAttribute('data-theme', 'dark')
 } else {
 trans()
 document.documentElement.setAttribute('data-theme', 'light')
 }
 }
)

let trans = () => {
 document.documentElement.classList.add('transition');
 window.setTimeout(() =>
 {
 document.documentElement.classList.remove('transition')
 }, 1000
 )
}

[edited by: not2easy at 5:45 pm (utc) on Jun 27, 2020]
[edit reason] Added CODE tags/readability [/edit]

[NickMNS]

What is the error exactly?

If it is that you are missing a semicolon ( ; ), then its simple. There should be a semicolon after each line of the if statement.

checkbox.addEventListener('change', function() {
 if(this.checked) {
 trans();
 document.documentElement.setAttribute('data-theme', 'dark');
 } else {
 trans();
 document.documentElement.setAttribute('data-theme', 'light');
 }
});

[edited by: not2easy at 5:51 pm (utc) on Jun 27, 2020]
[edit reason] spaced smilies/readability [/edit]

[toplisek]

Yes, but at the bottom it is missing ; before statement. How to solve also the whole code?

let trans = () => {
 document.documentElement.classList.add('transition');
 window.setTimeout(() =>
 {
 document.documentElement.classList.remove('transition')
 }, 1000
 )
}

[edited by: not2easy at 5:46 pm (utc) on Jun 27, 2020]
[edit reason] Added CODE tags/readability [/edit]

[NickMNS]

I don't see what the problem is. It tells you where it is missing. If you show the indentation it would be more obvious. Aslo use {code}{/code} but with square brackets [] to post code snippets. it makes it easier to read

let trans = () => {
 document.documentElement.classList.add('transition');
 window.setTimeout(() => {
 document.documentElement.classList.remove('transition')
 }, 1000); // semicolon was missing here
}

[toplisek]

Thank you for the message. I will be more careful with the CODE Tag.