JavaScript braces on new line or not? [closed]

Answer 1

Douglas Crockford gives a reason for choosing the K&R style¹:

I always use the K&R style, putting the { at the end of a line instead of the front, because it avoids a horrible design blunder in JavaScript's return statement.

The blunder he is referring to is how JavaScript handles the return statement differently in the following two scenarios:

return {
   'status': 'ok'
};

... and:

return 
{
   'status': 'ok'
};

The first one will return an object with a status property, while the latter will return undefined because of semicolon insertion.

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¹ Douglas Crockford: JavaScript: The Good Parts: Style (page 96) - ISBN: 978-0596517748.