| // Copyright (C) 2015 the V8 project authors. All rights reserved. |
| // This code is governed by the BSD license found in the LICENSE file. |
| /*--- |
| esid: sec-array.prototype.findindex |
| description: > |
| Predicate is only called if this.length is > 0. |
| info: | |
| 22.1.3.9 Array.prototype.findIndex ( predicate[ , thisArg ] ) |
| |
| ... |
| 7. Let k be 0. |
| 8. Repeat, while k < len |
| ... |
| d. Let testResult be ToBoolean(Call(predicate, T, «kValue, k, O»)). |
| ... |
| 9. Return -1. |
| ---*/ |
| |
| var called = false; |
| |
| var predicate = function() { |
| called = true; |
| return true; |
| }; |
| |
| var result = [].findIndex(predicate); |
| |
| assert.sameValue( |
| called, false, |
| '[].findIndex(predicate) does not call predicate' |
| ); |
| assert.sameValue( |
| result, -1, |
| '[].findIndex(predicate) returned undefined' |
| ); |
