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Are there any reasons, apart from subjective visual perception and cases where you have multiple statements on the same line, to use semicolon at the end of statements in JavaScript?
It looks like that there's plenty of evidence suggesting that use of semicolons is highly optional and is required in only few of the specific cases.
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A "double semicolon" does not have any special meaning in c. The second semicolon simply terminates an empty statement. So you can simply remove it.
Yes, semicolons can be used to connect three, or more, related independent clauses. That was fairly common a few hundred years ago, but it became less common as literacy spread.
Because JavaScript does nasty things to you when it guesses where to put semicolons. It's better to be explicit and let the interpreter know exactly what you meant than it is to let the idiot box guess on your behalf.
References:
...and a cast of thousands.
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