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16 lines
509 B
16 lines
509 B
3 years ago
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import cb from './_cb.js';
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import getLength from './_getLength.js';
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// Internal function to generate `_.findIndex` and `_.findLastIndex`.
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export default function createPredicateIndexFinder(dir) {
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return function(array, predicate, context) {
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predicate = cb(predicate, context);
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var length = getLength(array);
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var index = dir > 0 ? 0 : length - 1;
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for (; index >= 0 && index < length; index += dir) {
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if (predicate(array[index], index, array)) return index;
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}
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return -1;
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};
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}
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