tree shake stuff

.babelrc

@@ -1,5 +1,9 @@
 {
-  "presets": ["es2015", "es2016", "stage-2"],
+  "presets": [
+    ["es2015", {"modules": false}],
+    "es2016",
+    "stage-2"
+  ],
   "env": {
     "test": {
       "plugins": [

src/app.js

@@ -1,7 +1,6 @@
 import 'todomvc-app-css/index.css'
 
 import View from './view'
-import {log} from './helpers'
 import Controller from './controller'
 import Model from './model'
 import Store from './store'
@@ -23,5 +22,4 @@ function Todo(name) {
 export function onLoad() { // eslint-disable-line import/prefer-default-export
   const todo = new Todo('todos-vanillajs')
   todo.controller.setView(document.location.hash)
-  log('view set')
 }

src/helpers.js

@@ -1,4 +1,4 @@
-export {qs, qsa, log, $on, $delegate, $parent, remove, leftPad}
+export {qs, qsa, $on, $delegate, $parent, remove}
 
 // Get element(s) by CSS selector:
 function qs(selector, scope) {
@@ -9,12 +9,6 @@ function qsa(selector, scope) {
   return (scope || document).querySelectorAll(selector)
 }
 
-function log(...args) {
-  if (window.console && window.console.log) {
-    window.console.log(...args)
-  }
-}
-
 // addEventListener wrapper:
 function $on(target, type, callback, useCapture) {
   target.addEventListener(type, callback, !!useCapture)
@@ -62,16 +56,6 @@ function remove(array, thing) {
   array.splice(index, 1)
 }
 
-// pad the left of the given string by the given size with the given character
-// leftPad('10', 3, '0') -> 010
-function leftPad(str, size, padWith) {
-  if (size <= str.length) {
-    return str
-  } else {
-    return Array(size - str.length + 1).join(padWith || '0') + str
-  }
-}
-
 // Allow for looping on nodes by chaining:
 // qsa('.foo').forEach(function () {})
 NodeList.prototype.forEach = Array.prototype.forEach