splice-on-arguments.js (794B)
1 // test whether splice works on arguments 2 3 function splice_args () { 4 args = arguments; 5 return Array.prototype.splice.apply(args, [0, 5]); 6 } 7 8 var args; 9 var O = [0, 1, 2, 3, 4, 5, 6, 7, 8, 9]; 10 var A = splice_args.apply(undefined, O) 11 12 // args: [5, 6, 7, 8, 9] 13 assertEq(args[0], 5); 14 assertEq(args[1], 6); 15 assertEq(args[2], 7); 16 assertEq(args[3], 8); 17 assertEq(args[4], 9); 18 assertEq(args.length, 5); 19 20 // A: [0, 1, 2, 3, 4] 21 assertEq(A[0], 0); 22 assertEq(A[1], 1); 23 assertEq(A[2], 2); 24 assertEq(A[3], 3); 25 assertEq(A[4], 4); 26 assertEq(A.length, 5); 27 28 // O: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9] 29 assertEq(O[0], 0); 30 assertEq(O[1], 1); 31 assertEq(O[2], 2); 32 assertEq(O[3], 3); 33 assertEq(O[4], 4); 34 assertEq(O[5], 5); 35 assertEq(O[6], 6); 36 assertEq(O[7], 7); 37 assertEq(O[8], 8); 38 assertEq(O[9], 9); 39 assertEq(O.length, 10);