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- 'use strict';
-
- module.exports = function median(key) {
- var length = this.items.length;
-
-
- if (key === undefined) {
- if (length % 2 === 0) {
- return (this.items[length / 2 - 1] + this.items[length / 2]) / 2;
- }
-
- return this.items[Math.floor(length / 2)];
- }
-
- if (length % 2 === 0) {
- return (this.items[length / 2 - 1][key] + this.items[length / 2][key]) / 2;
- }
-
- return this.items[Math.floor(length / 2)][key];
- };
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