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// |reftest| shell-option(--enable-float16array)
// Copyright (C) 2021 Microsoft. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
esid: sec-%typedarray%.prototype.findlast
description: >
Return found value if predicate return a boolean true value.
info: |
%TypedArray%.prototype.findLast (predicate [ , thisArg ] )
6. Repeat, while k ≥ 0,
...
c. Let testResult be ! ToBoolean(? Call(predicate, thisArg, « kValue, 𝔽(k), O »)).
d. If testResult is true, return kValue.
...
includes: [testTypedArray.js]
features: [Symbol, TypedArray, array-find-from-last]
---*/
testWithTypedArrayConstructors(function(TA) {
var sample = new TA([39, 2, 62]);
var called, result;
called = 0;
result = sample.findLast(function() {
called++;
return true;
});
assert.sameValue(result, 62, "returned true on sample[2]");
assert.sameValue(called, 1, "predicate was called once");
called = 0;
result = sample.findLast(function(val) {
called++;
return val === 39;
});
assert.sameValue(called, 3, "predicate was called three times");
assert.sameValue(result, 39, "returned true on sample[0]");
result = sample.findLast(function() { return "string"; });
assert.sameValue(result, 62, "ToBoolean(string)");
result = sample.findLast(function() { return {}; });
assert.sameValue(result, 62, "ToBoolean(object)");
result = sample.findLast(function() { return Symbol(""); });
assert.sameValue(result, 62, "ToBoolean(symbol)");
result = sample.findLast(function() { return 1; });
assert.sameValue(result, 62, "ToBoolean(number)");
result = sample.findLast(function() { return -1; });
assert.sameValue(result, 62, "ToBoolean(negative number)");
});
reportCompare(0, 0);
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