JavaScript - #syntaxerror

What does "syntaxerror: Unexpected token x" imply in JavaScript?
What causes "syntaxerror: missing ) after argument list" in JavaScript?
How can I solve "syntaxerror: Unexpected end of input" in JavaScript?
What does 'Uncaught syntaxerror: Unexpected token' mean?
Why do I see 'Uncaught syntaxerror: missing ) after argument list'?
How to resolve 'syntaxerror: Unexpected token X in JSON' in JavaScript?
How to fix 'syntaxerror: missing ) after argument list' in JavaScript?
How to solve 'syntaxerror: Unexpected string' in JavaScript?