// 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.find description: > Predicate called as F.call( thisArg, kValue, k, O ) for each array entry. info: | 22.2.3.10 %TypedArray%.prototype.find (predicate [ , thisArg ] ) %TypedArray%.prototype.find is a distinct function that implements the same algorithm as Array.prototype.find as defined in 22.1.3.8 except that the this object's [[ArrayLength]] internal slot is accessed in place of performing a [[Get]] of "length". The implementation of the algorithm may be optimized with the knowledge that the this value is an object that has a fixed length and whose integer indexed properties are not sparse. ... 22.1.3.8 Array.prototype.find ( predicate[ , thisArg ] ) ... 4. If thisArg was supplied, let T be thisArg; else let T be undefined. 5. Let k be 0. 6. Repeat, while k < len ... c. Let testResult be ToBoolean(? Call(predicate, T, « kValue, k, O »)). ... includes: [testTypedArray.js] features: [TypedArray] ---*/ testWithTypedArrayConstructors(function(TA) { var sample = new TA([39, 2, 62]); var results = []; var result; sample.foo = "bar"; // Ignores non integer index properties sample.find(function() { results.push(arguments); }); assert.sameValue(results.length, 3, "predicate is called for each index"); result = results[0]; assert.sameValue(result[0], 39, "results[0][0] === 39, value"); assert.sameValue(result[1], 0, "results[0][1] === 0, index"); assert.sameValue(result[2], sample, "results[0][2] === sample, instance"); assert.sameValue(result.length, 3, "results[0].length === 3 arguments"); result = results[1]; assert.sameValue(result[0], 2, "results[1][0] === 2, value"); assert.sameValue(result[1], 1, "results[1][1] === 1, index"); assert.sameValue(result[2], sample, "results[1][2] === sample, instance"); assert.sameValue(result.length, 3, "results[1].length === 3 arguments"); result = results[2]; assert.sameValue(result[0], 62, "results[2][0] === 62, value"); assert.sameValue(result[1], 2, "results[2][1] === 2, index"); assert.sameValue(result[2], sample, "results[2][2] === sample, instance"); assert.sameValue(result.length, 3, "results[2].length === 3 arguments"); }); reportCompare(0, 0);