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24 lines
711 B
JavaScript
24 lines
711 B
JavaScript
/**
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* The base implementation of `findIndex` and `findLastIndex`.
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*
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* @private
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* @param {Array} array The array to inspect.
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* @param {Function} predicate The function invoked per iteration.
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* @param {number} fromIndex The index to search from.
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* @param {boolean} [fromRight] Specify iterating from right to left.
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* @returns {number} Returns the index of the matched value, else `-1`.
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*/
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function baseFindIndex(array, predicate, fromIndex, fromRight) {
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const { length } = array
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let index = fromIndex + (fromRight ? 1 : -1)
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while ((fromRight ? index-- : ++index < length)) {
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if (predicate(array[index], index, array)) {
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return index
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}
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}
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return -1
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}
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export default baseFindIndex
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