-var Yallist = require('./yallist.js')
-
-Yallist.prototype[Symbol.iterator] = function* () {
- for (let walker = this.head; walker; walker = walker.next) {
- yield walker.value
+'use strict'
+module.exports = function (Yallist) {
+ Yallist.prototype[Symbol.iterator] = function* () {
+ for (let walker = this.head; walker; walker = walker.next) {
+ yield walker.value
+ }