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[simantics/district.git] / org.simantics.maps.server / node / node-v4.8.0-win-x64 / node_modules / npm / node_modules / node-gyp / node_modules / path-array / node_modules / array-index / node_modules / es6-symbol / node_modules / es5-ext / array / # / e-last-index-of.js
1 'use strict';
2
3 var toPosInt = require('../../number/to-pos-integer')
4   , value    = require('../../object/valid-value')
5
6   , lastIndexOf = Array.prototype.lastIndexOf
7   , hasOwnProperty = Object.prototype.hasOwnProperty
8   , abs = Math.abs, floor = Math.floor;
9
10 module.exports = function (searchElement/*, fromIndex*/) {
11         var i, fromIndex, val;
12         if (searchElement === searchElement) { //jslint: ignore
13                 return lastIndexOf.apply(this, arguments);
14         }
15
16         value(this);
17         fromIndex = arguments[1];
18         if (isNaN(fromIndex)) fromIndex = (toPosInt(this.length) - 1);
19         else if (fromIndex >= 0) fromIndex = floor(fromIndex);
20         else fromIndex = toPosInt(this.length) - floor(abs(fromIndex));
21
22         for (i = fromIndex; i >= 0; --i) {
23                 if (hasOwnProperty.call(this, i)) {
24                         val = this[i];
25                         if (val !== val) return i; //jslint: ignore
26                 }
27         }
28         return -1;
29 };