1 2 3 4 5 6 7 8 9
let f = function(a, bIs, cIs, dIs, {b}={b: 3}, c=4, [d]=[5]) { assertEq(a, 1); assertEq(b, bIs); assertEq(c, cIs); assertEq(d, dIs); }; assertEq(f.length, 4); f(1, 3, 4, 5); f(1, 42, 43, 44, {b: 42}, 43, [44]);