float32array-mutate.js (796B)
1 // Copyright (C) 2015 the V8 project authors. All rights reserved. 2 // This code is governed by the BSD license found in the LICENSE file. 3 /*--- 4 es6id: 13.6.4 5 description: Float32Array mutation during traversal using for..of 6 info: | 7 Float32Array instances should be able to be traversed using a `for..of` 8 loop, and dynamic changes to their contents should be reflected in the 9 iterated values. 10 features: [TypedArray] 11 ---*/ 12 13 var iterationCount = 0; 14 var array = new Float32Array([3, 2, 4, 1]); 15 16 var first = 3; 17 var second = 64; 18 var third = 4; 19 var fourth = 1; 20 21 for (var x of array) { 22 assert.sameValue(x, first); 23 24 first = second; 25 second = third; 26 third = fourth; 27 fourth = null; 28 29 array[1] = 64; 30 31 iterationCount += 1; 32 } 33 34 assert.sameValue(iterationCount, 4); 35 36 reportCompare(0, 0);