Question

Typically, the solution to for..in‘s notorious caveat is something along the lines of:

for(var prop in obj) {
    if(obj.hasOwnProperty(prop)) {
        foo(); bar(); baz();
    }
}

I feel like it would be cleaner to just do:

for(var prop in obj) {
    if(!obj.hasOwnProperty(prop)) continue;
}

The question is… Are they not functionally identical?

Answer 1

They are functionally identical. Period.

As for the matter of style, Douglas and his JSLint say: don’t use continue:

Avoid use of the continue statement. It tends to obscure the control flow of the function.

See http://javascript.crockford.com/code.html and search for “continue”