S15.4.5.1_A1.2_T1.js (814B)
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 esid: sec-array-exotic-objects-defineownproperty-p-desc 6 info: | 7 For every integer k that is less than the value of 8 the length property of A but not less than ToUint32(length), 9 if A itself has a property (not an inherited property) named ToString(k), 10 then delete that property 11 es5id: 15.4.5.1_A1.2_T1 12 description: Change length of array 13 ---*/ 14 15 var x = [0, , 2, , 4]; 16 x.length = 4; 17 assert.sameValue(x[4], undefined, 'The value of x[4] is expected to equal undefined'); 18 19 x.length = 3; 20 assert.sameValue(x[3], undefined, 'The value of x[3] is expected to equal undefined'); 21 assert.sameValue(x[2], 2, 'The value of x[2] is expected to be 2'); 22 23 reportCompare(0, 0);