JavaScript is executed in the browser, this means the script has to be submitted to the client. So, of course anyone can view the code, wether it's happening in the developer tools, getting the direct link out of your html or, for example, using a http sniffer.

Altough, there are some methods to make the script unreadable for humans. Minifying your script is a good practice in general. It decreases file-size, so the client has to download less, speeding up loading time. After all, this does not really help making your script "unreadable" for users, there are a lot of deminifying services all around the web.

Still, there is another way: obscurifying (or obfuscate) your script. This replaces the code to make it unreadable. Unfortunately, I don't really have experience with using this technique, so I don't know how it would affect the performance of the js-code.

Maybe you want to have a look at this: How can I obfuscate (protect) JavaScript?

JavaScript is executed in the browser, this means the script has to be submitted to the client. So, of course anyone can view the code, wether it's happening in the developer tools, getting the direct link out of your html or, for example, using a http sniffer.

Altough, there are some methods to make the script unreadable for humans. Minifying your script is a good practice in general. It decreases file-size, so the client has to download less, speeding up loading time. After all, this does not really help making your script "unreadable" for users, there are a lot of deminifying services all around the web.

Still, there is another way: obscurifying (or obfuscate) your script. This replaces the code to make it unreadable. Unfortunately, I don't really have experience with using this technique, so I don't know how it would affect the performance of the js-code.

Maybe you want to have a look at this: How can I obfuscate (protect) JavaScript?