test262/implementation-contributed/javascriptcore/stress/array-lastindexof-negative-...

26 lines
572 B
JavaScript

function shouldBe(actual, expected) {
if (actual !== expected)
throw new Error('bad value: ' + actual);
}
{
let array = [42.195, -0.0];
shouldBe(array.lastIndexOf(0), 1);
shouldBe(array.lastIndexOf(-0), 1);
}
{
let array = [42.195, 0, -0.0];
shouldBe(array.lastIndexOf(0), 2);
shouldBe(array.lastIndexOf(-0), 2);
}
{
let array = [42, 0];
shouldBe(array.lastIndexOf(0), 1);
shouldBe(array.lastIndexOf(-0), 1);
}
{
let array = [42, 0, 44];
shouldBe(array.lastIndexOf(0), 1);
shouldBe(array.lastIndexOf(-0), 1);
}