Welcome to the Lounge

Super Lloyd wrote:

I fail to see the tricky bit

return
{
    a: "hello"
}

return {
    a: "hello"
}

return [1,2];  // returns the array

return
  [1,2];  // returns `undefined`

return [no LineTerminator here] Expression ;

Palash Mondal_ wrote:

This happens since based on Standard ECMA-262 5.1 Edition section [^]:

return // equivalent to return undefined

return expression;  // The ';' is unnecessary as the end-of-line is a terminator

var x = 
   {
   a: 'Hello'
   };

if (x)
   {
   a: 'hello'
   };

Chris Maunder wrote:

A Collection of JavaScript Gotchas

Chris Maunder wrote:

Now if only the million, billion frontend frameworks, tools and libraries would settle down