23 lines
662 B
JavaScript
23 lines
662 B
JavaScript
import { isArrayLike } from '../predicate/isArrayLike.mjs';
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function lastIndexOf(array, searchElement, fromIndex) {
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if (!isArrayLike(array) || array.length === 0) {
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return -1;
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}
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const length = array.length;
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let index = fromIndex ?? length - 1;
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if (fromIndex != null) {
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index = index < 0 ? Math.max(length + index, 0) : Math.min(index, length - 1);
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}
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if (Number.isNaN(searchElement)) {
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for (let i = index; i >= 0; i--) {
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if (Number.isNaN(array[i])) {
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return i;
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}
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}
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}
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return Array.from(array).lastIndexOf(searchElement, index);
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}
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export { lastIndexOf };
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