chore(ES6): changed 'var' into 'const' where convenient

lib/generate-loader/index.js

@@ -1,13 +1,13 @@
-var yeoman = require("yeoman-environment");
-var LoaderGenerator = require("../generators/loader-generator").LoaderGenerator;
+const yeoman = require("yeoman-environment");
+const { LoaderGenerator } = require("../generators/loader-generator");
 
 /**
  * Runs a yeoman generator to create a new webpack loader project
  * @returns {void}
  */
 function loaderCreator() {
-	var env = yeoman.createEnv();
-	var generatorName = "webpack-loader-generator";
+	const env = yeoman.createEnv();
+	const generatorName = "webpack-loader-generator";
 
 	env.registerStub(LoaderGenerator, generatorName);
 

lib/generate-plugin/index.js

@@ -1,13 +1,13 @@
-var yeoman = require("yeoman-environment");
-var PluginGenerator = require("../generators/plugin-generator").PluginGenerator;
+const yeoman = require("yeoman-environment");
+const PluginGenerator = require("../generators/plugin-generator").PluginGenerator;
 
 /**
  * Runs a yeoman generator to create a new webpack plugin project
  * @returns {void}
  */
 function pluginCreator() {
-	var env = yeoman.createEnv();
-	var generatorName = "webpack-plugin-generator";
+	const env = yeoman.createEnv();
+	const generatorName = "webpack-plugin-generator";
 
 	env.registerStub(PluginGenerator, generatorName);
 

lib/generators/loader-generator.js

@@ -1,6 +1,6 @@
-var path = require("path");
-var _ = require("lodash");
-var webpackGenerator = require("./webpack-generator");
+const path = require("path");
+const _ = require("lodash");
+const webpackGenerator = require("./webpack-generator");
 
 /**
  * Formats a string into webpack loader format
@@ -25,7 +25,7 @@ function makeLoaderName(name) {
  * @class LoaderGenerator
  * @extends {Generator}
  */
-var LoaderGenerator = webpackGenerator(
+const LoaderGenerator = webpackGenerator(
 	[
 		{
 			type: "input",

lib/generators/loader-generator.test.js

@@ -1,15 +1,15 @@
 "use strict";
 
-var makeLoaderName = require("./loader-generator").makeLoaderName;
+const makeLoaderName = require("./loader-generator").makeLoaderName;
 
 describe("makeLoaderName", () => {
 	it("should kebab-case loader name and append '-loader'", () => {
-		var loaderName = makeLoaderName("This is a test");
+		const loaderName = makeLoaderName("This is a test");
 		expect(loaderName).toEqual("this-is-a-test-loader");
 	});
 
 	it("should not modify a properly formatted loader name", () => {
-		var loaderName = makeLoaderName("properly-named-loader");
+		const loaderName = makeLoaderName("properly-named-loader");
 		expect(loaderName).toEqual("properly-named-loader");
 	});
 });

lib/generators/plugin-generator.js

@@ -1,6 +1,6 @@
-var path = require("path");
-var _ = require("lodash");
-var webpackGenerator = require("./webpack-generator");
+const path = require("path");
+const _ = require("lodash");
+const webpackGenerator = require("./webpack-generator");
 
 /**
  * A yeoman generator class for creating a webpack
@@ -10,7 +10,7 @@ var webpackGenerator = require("./webpack-generator");
  * @class PluginGenerator
  * @extends {Generator}
  */
-var PluginGenerator = webpackGenerator(
+const PluginGenerator = webpackGenerator(
 	[
 		{
 			type: "input",

lib/generators/webpack-generator.js

@@ -1,7 +1,7 @@
-var path = require("path");
-var mkdirp = require("mkdirp");
-var Generator = require("yeoman-generator");
-var copyUtils = require("../utils/copy-utils");
+const path = require("path");
+const mkdirp = require("mkdirp");
+const Generator = require("yeoman-generator");
+const copyUtils = require("../utils/copy-utils");
 
 /**
  * Creates a Yeoman Generator that generates a project conforming
@@ -40,14 +40,14 @@ function webpackGenerator(
 		}
 
 		default() {
-			var currentDirName = path.basename(this.destinationPath());
+			const currentDirName = path.basename(this.destinationPath());
 			if (currentDirName !== this.props.name) {
 				this.log(`
 				Your project must be inside a folder named ${this.props.name}
 				I will create this folder for you.
 				`);
 				mkdirp(this.props.name);
-				var pathToProjectDir = this.destinationPath(this.props.name);
+				const pathToProjectDir = this.destinationPath(this.props.name);
 				this.destinationRoot(pathToProjectDir);
 			}
 		}

lib/init/transformations/top-scope/__snapshots__/top-scope.test.js.snap

@@ -1,7 +1,7 @@
 // Jest Snapshot v1, https://goo.gl/fbAQLP
 
 exports[`top-scope transforms correctly using "top-scope-0" data 1`] = `
-"var test = 'me';
+"const test = 'me';
 module.exports = {}
 "
 `;

lib/init/transformations/top-scope/top-scope.test.js

@@ -2,7 +2,7 @@
 
 const defineTest = require("../../../utils/defineTest");
 
-defineTest(__dirname, "top-scope", "top-scope-0", ["var test = 'me';"], "init");
+defineTest(__dirname, "top-scope", "top-scope-0", ["const test = 'me';"], "init");
 defineTest(
 	__dirname,
 	"top-scope",

lib/migrate/__testfixtures__/failing.js

@@ -1,8 +1,8 @@
-var webpack = require("webpack");
-var nodeEnvironment = process.env.NODE_ENV;
-var _ = require("lodash");
+const webpack = require("webpack");
+const nodeEnvironment = process.env.NODE_ENV;
+const _ = require("lodash");
 
-var config = {
+const config = {
 	entry: {
 		lib: "./app/index.js",
 		email: "./app/email.js"

lib/utils/ast-utils.js

@@ -234,7 +234,7 @@ function createOrUpdatePluginByName(j, rootNodePath, pluginName, options) {
  * @param {any} j — jscodeshift API
  * @param {Node} rootNode - `plugins: []` Root Node. See https://github.com/facebook/jscodeshift/wiki/jscodeshift-Documentation#nodepaths
  * @param {String} pluginPackageName - ex. `extract-text-plugin`
- * @returns {String} variable name - ex. 'var s = require(s) gives "s"`
+ * @returns {String} variable name - ex. 'const s = require(s) gives "s"`
  */
 
 function findVariableToPlugin(j, rootNode, pluginPackageName) {

lib/utils/ast-utils.test.js

@@ -70,15 +70,15 @@ describe("utils", () => {
 	describe("findRootNodesByName", () => {
 		it("should find plugins: [] nodes", () => {
 			const ast = j(`
-var a = { plugins: [], foo: { plugins: [] } }
+const a = { plugins: [], foo: { plugins: [] } }
 `);
 			const res = utils.findRootNodesByName(j, ast, "plugins");
 			expect(res.size()).toEqual(2);
 		});
 
 		it("should not find plugins: [] nodes", () => {
 			const ast = j(`
-var a = { plugs: [] }
+const a = { plugs: [] }
 `);
 			const res = utils.findRootNodesByName(j, ast, "plugins");
 			expect(res.size()).toEqual(0);
@@ -132,12 +132,12 @@ var a = { plugs: [] }
 	describe("findVariableToPlugin", () => {
 		it("should find the variable name of a plugin", () => {
 			const ast = j(`
-			var packageName = require('package-name');
-			var someOtherVar = somethingElse;
-			var otherPackage = require('other-package');
+			const packageName = require('package-name');
+			const someOtherconst = somethingElse;
+			const otherPackage = require('other-package');
 			`);
-			const foundVar = utils.findVariableToPlugin(j, ast, "other-package");
-			expect(foundVar).toEqual("otherPackage");
+			const found = utils.findVariableToPlugin(j, ast, "other-package");
+			expect(found).toEqual("otherPackage");
 		});
 	});
 
@@ -166,7 +166,7 @@ var a = { plugs: [] }
 	describe("findObjWithOneOfKeys", () => {
 		it("should find keys", () => {
 			const ast = j(`
-			var ab = {
+			const ab = {
 				a: 1,
 				b: 2
 			}

lib/utils/copy-utils.js

@@ -1,4 +1,4 @@
-var path = require("path");
+const path = require("path");
 
 /**
  * Takes in a file path in the `./templates` directory. Copies that
@@ -8,13 +8,13 @@ var path = require("path");
  * @param {string} templateDir Absolute path to template directory
  * @returns {Function} A curried function that takes a file path and copies it
  */
-var generatorCopy = (
+const generatorCopy = (
 	generator,
 	templateDir
 ) => /** @param {string} filePath */ filePath => {
-	var sourceParts = templateDir.split(path.delimiter);
+	const sourceParts = templateDir.split(path.delimiter);
 	sourceParts.push.apply(sourceParts, filePath.split("/"));
-	var targetParts = path.dirname(filePath).split("/");
+	const targetParts = path.dirname(filePath).split("/");
 	targetParts.push(path.basename(filePath, ".tpl"));
 
 	generator.fs.copy(
@@ -34,14 +34,14 @@ var generatorCopy = (
  * the template files.
  * @returns {Function} A curried function that takes a file path and copies it
  */
-var generatorCopyTpl = (
+const generatorCopyTpl = (
 	generator,
 	templateDir,
 	templateData
 ) => /** @param {string} filePath */ filePath => {
-	var sourceParts = templateDir.split(path.delimiter);
+	const sourceParts = templateDir.split(path.delimiter);
 	sourceParts.push.apply(sourceParts, filePath.split("/"));
-	var targetParts = path.dirname(filePath).split("/");
+	const targetParts = path.dirname(filePath).split("/");
 	targetParts.push(path.basename(filePath, ".tpl").slice(1));
 
 	generator.fs.copyTpl(

lib/utils/hashtable.js

@@ -6,11 +6,11 @@
  * @returns {Array} A sorted array with removed dupe elements
  */
 module.exports = function hashtable(a) {
-	var prims = { boolean: {}, number: {}, string: {} },
+	const prims = { boolean: {}, number: {}, string: {} },
 		objs = [];
 
 	return a.filter(function(item) {
-		var type = typeof item;
+		const type = typeof item;
 		if (type in prims)
 			return prims[type].hasOwnProperty(item)
 				? false