S15.4.5.2_A3_T2.js (1068B)
1 // Copyright 2009 the Sputnik authors. All rights reserved. 2 // This code is governed by the BSD license found in the LICENSE file. 3 4 /*--- 5 info: | 6 If the length property is changed, every property whose name 7 is an array index whose value is not smaller than the new length is automatically deleted 8 es5id: 15.4.5.2_A3_T2 9 description: > 10 If new length greater than the name of every property whose name 11 is an array index 12 ---*/ 13 14 var x = []; 15 x[1] = 1; 16 x[3] = 3; 17 x[5] = 5; 18 x.length = 4; 19 assert.sameValue(x.length, 4, 'The value of x.length is expected to be 4'); 20 assert.sameValue(x[5], undefined, 'The value of x[5] is expected to equal undefined'); 21 assert.sameValue(x[3], 3, 'The value of x[3] is expected to be 3'); 22 23 x.length = new Number(6); 24 assert.sameValue(x[5], undefined, 'The value of x[5] is expected to equal undefined'); 25 26 x.length = 0; 27 assert.sameValue(x[0], undefined, 'The value of x[0] is expected to equal undefined'); 28 29 x.length = 1; 30 assert.sameValue(x[1], undefined, 'The value of x[1] is expected to equal undefined'); 31 32 reportCompare(0, 0);