// 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: > Return found value if predicate return a boolean true value. 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 ] ) ... 6. Repeat, while k < len ... c. Let testResult be ToBoolean(? Call(predicate, T, « kValue, k, O »)). d. If testResult is true, return kValue. ... includes: [testTypedArray.js] features: [Symbol, TypedArray] ---*/ testWithTypedArrayConstructors(function(TA) { var sample = new TA([39, 2, 62]); var called, result; called = 0; result = sample.find(function() { called++; return true; }); assert.sameValue(result, 39, "returned true on sample[0]"); assert.sameValue(called, 1, "predicate was called once"); called = 0; result = sample.find(function(val) { called++; return val === 62; }); assert.sameValue(called, 3, "predicate was called three times"); assert.sameValue(result, 62, "returned true on sample[3]"); result = sample.find(function() { return "string"; }); assert.sameValue(result, 39, "ToBoolean(string)"); result = sample.find(function() { return {}; }); assert.sameValue(result, 39, "ToBoolean(object)"); result = sample.find(function() { return Symbol(""); }); assert.sameValue(result, 39, "ToBoolean(symbol)"); result = sample.find(function() { return 1; }); assert.sameValue(result, 39, "ToBoolean(number)"); result = sample.find(function() { return -1; }); assert.sameValue(result, 39, "ToBoolean(negative number)"); }); reportCompare(0, 0);