Is it necessary to end a code with ; in javascript

Question

Pls tell where to use it in variable , constants and where else

Answer 1

No we don't have to, except in for loop

for(let i = 0; i <= 10; i++) {
}

Here we chain statements and we need to use it
But in other cases code will mostly work without it

Browsers understand end of line as ";"
So if you don't have anything after statement, ";" is not needed

Make sure you stick to same style when coding, if you used already ";" in your code, then use it thought full code.

Maybe some tools to minify code(or similar) will break if ";" is not used, so if you use this tools, read documentation and make sure it won't make problems, before you start to type your code.

Answer 2

If there is no need to put a special character at the end of the line, then we put ;
function name(){ #here we do not put ; because there are curly braces#
let x = 1; #this is a character here because we don't put a special character#
}