Edit File: e-last-index-of.js
"use strict"; var numberIsNaN = require("../../number/is-nan") , toPosInt = require("../../number/to-pos-integer") , value = require("../../object/valid-value") , lastIndexOf = Array.prototype.lastIndexOf , objHasOwnProperty = Object.prototype.hasOwnProperty , abs = Math.abs , floor = Math.floor; module.exports = function (searchElement/*, fromIndex*/) { var i, fromIndex, val; if (!numberIsNaN(searchElement)) { // Jslint: ignore return lastIndexOf.apply(this, arguments); } value(this); fromIndex = arguments[1]; if (isNaN(fromIndex)) fromIndex = toPosInt(this.length) - 1; else if (fromIndex >= 0) fromIndex = floor(fromIndex); else fromIndex = toPosInt(this.length) - floor(abs(fromIndex)); for (i = fromIndex; i >= 0; --i) { if (objHasOwnProperty.call(this, i)) { val = this[i]; if (numberIsNaN(val)) return i; // Jslint: ignore } } return -1; };
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