| // Copyright (C) 2020 Alexey Shvayka. All rights reserved. |
| // This code is governed by the BSD license found in the LICENSE file. |
| /*--- |
| esid: sec-%typedarray%.prototype.lastindexof |
| description: > |
| If `searchElement` is not supplied, -1 is returned. |
| info: | |
| %TypedArray%.prototype.lastIndexOf ( searchElement [ , fromIndex ] ) |
| |
| %TypedArray%.prototype.lastIndexOf is a distinct function that implements |
| the same algorithm as Array.prototype.lastIndexOf as defined in 22.1.3.17 |
| except that the this value's [[ArrayLength]] internal slot is accessed |
| in place of performing a [[Get]] of "length". |
| |
| Array.prototype.lastIndexOf ( searchElement [ , fromIndex ] ) |
| |
| [...] |
| 8. Return -1. |
| includes: [testBigIntTypedArray.js] |
| features: [BigInt, TypedArray] |
| ---*/ |
| |
| testWithBigIntTypedArrayConstructors(function(TA) { |
| var ta1 = new TA(); |
| assert.sameValue(ta1.lastIndexOf(), -1); |
| |
| var ta2 = new TA([0n, 1n, 2n]); |
| assert.sameValue(ta2.lastIndexOf(), -1); |
| }); |