"use strict";
var __importDefault = (this && this.__importDefault) || function (mod) {
    return (mod && mod.__esModule) ? mod : { "default": mod };
};
Object.defineProperty(exports, "__esModule", { value: true });
const children_1 = __importDefault(require("./children"));
const isDOMChildNode_1 = __importDefault(require("./isDOMChildNode"));
/**
 * Find the index of a DOM element amongst its siblings
 *
 * @param elm - DOM element to find the index of
 * @return The index of `elm`
 *
 * @example
 *
 * ```ts
 * elmIndex(someDiv);
 * ```
 */
function elmIndex(elm) {
    return isDOMChildNode_1.default(elm)
        ? children_1.default(elm.parentNode).indexOf(elm)
        : -1;
}
exports.default = elmIndex;