jslint won't stop it if there's a variable (c in this case) in the outer scope -- it's perfectly fine code as far as jslint is concerned. And jslint encourages

jslint won't stop it if there's a variable (c in this case) in the outer scope -- it's perfectly fine code as far as jslint is concerned. And jslint encourages that declaration style (actually encourages is too weak a word).