It doesn't matter whether you use semicolons or not in your JavaScript. It is not going to make a big difference in the quality of your code.
Personally, I don't use any semicolons in my code because it feels nicer to write JavaScript without it. I used to use semicolons before, and I tried removing it, and I realize its okay.
Read this article by Feross if you're interested to find out why you can omit semicolons: https://feross.org/never-use-semicolons/.
To help you maintain code consistency, consider using a linter. If you use Sublime Text, you can use Sublime Linter (https://packagecontrol.io/packages/Su....
If you want to omit semicolons, I suggest you use standard (https://standardjs.com). If you like semicolons, you can try semistandard (https://github.com/Flet/semistandard).
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