| // Copyright (C) 2016 the V8 project authors. All rights reserved. |
| // This code is governed by the BSD license found in the LICENSE file. |
| |
| /*--- |
| esid: sec-%typedarray%.prototype.includes |
| description: search element is compared using SameValueZero |
| info: | |
| 22.2.3.13 %TypedArray%.prototype.includes ( searchElement [ , fromIndex ] ) |
| |
| %TypedArray%.prototype.includes is a distinct function that implements the |
| same algorithm as Array.prototype.includes as defined in 22.1.3.11 except that |
| the this object's [[ArrayLength]] internal slot is accessed in place of |
| performing a [[Get]] of "length". |
| |
| 22.1.3.11 Array.prototype.includes ( searchElement [ , fromIndex ] ) |
| |
| ... |
| 7. Repeat, while k < len |
| a. Let elementK be the result of ? Get(O, ! ToString(k)). |
| b. If SameValueZero(searchElement, elementK) is true, return true. |
| c. Increase k by 1. |
| ... |
| includes: [testTypedArray.js] |
| features: [TypedArray] |
| ---*/ |
| |
| testWithTypedArrayConstructors(function(TA) { |
| var sample = new TA([42, 0, 1, undefined]); |
| assert.sameValue(sample.includes(), false, "no arg"); |
| assert.sameValue(sample.includes(undefined), false, "undefined"); |
| assert.sameValue(sample.includes("42"), false, "'42'"); |
| assert.sameValue(sample.includes([42]), false, "[42]"); |
| assert.sameValue(sample.includes(42.0), true, "42.0"); |
| assert.sameValue(sample.includes(-0), true, "-0"); |
| assert.sameValue(sample.includes(true), false, "true"); |
| assert.sameValue(sample.includes(false), false, "false"); |
| assert.sameValue(sample.includes(null), false, "null"); |
| assert.sameValue(sample.includes(""), false, "empty string"); |
| }); |
| |
| testWithTypedArrayConstructors(function(FloatArray) { |
| var sample = new FloatArray([42, 0, 1, undefined, NaN]); |
| assert.sameValue(sample.includes(NaN), true, "NaN"); |
| }, [Float32Array, Float64Array]); |