@extra-array/find-index/index.mjs

Finds index of leftmost value passing a test.

import { search as iterableSearch } from 'extra-iterable';
/**
 * Finds index of leftmost value passing a test.
 * @param x an array
 * @param ft test function (v, i, x)
 * @returns index of value, -1 if not found
 */
function findIndex(x, ft) {
    return iterableSearch(x, ft);
}
export default findIndex;
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