Kangax blog has a code example: §
try {
(var x = 5); // grouping operator can only contain expression, not a statement (which `var` is)
} catch(err) {
// SyntaxError
}
Since the syntax error at line 2 would affect the "syntax of the entire code", what's the point of the catch statement here?
Is catch able to catch syntax errors in JavaScript?
You are right, javascript parser will generate an error, so it will never catch it.
Maybe his intention was to point out the wrong syntax (grouping operator can only contain expression, not a statement), but the try / catch statement is useless.
Moreover, the comment //syntaxError inside catch let suppose that the catch will do something.
if (false) { new Object = 1; } is treated as a syntax error in Firefox even though the specs permit this.
No, that is correct. Using a try...catch doesn't help against syntax errors.
The script block won't run at all if there is a syntax error keeping it from being parsed.
Syntax errors wont be caught by try/catch, as you can't wrap variable assignments in brackets like that.
