jettisoned a bunch of pre-ES6 polyfill dependencies

package.json

@@ -79,15 +79,10 @@
     "contains-path": "^0.1.0",
     "debug": "^2.2.0",
     "doctrine": "1.3.x",
-    "es6-map": "^0.1.3",
-    "es6-set": "^0.1.4",
     "eslint-import-resolver-node": "^0.2.0",
     "eslint-module-utils": "^1.0.0",
     "has": "^1.0.1",
     "lodash.cond": "^4.3.0",
-    "lodash.endswith": "^4.0.1",
-    "lodash.find": "^4.3.0",
-    "lodash.findindex": "^4.3.0",
     "minimatch": "^3.0.3",
     "pkg-up": "^1.0.0"
   },

src/rules/extensions.js

@@ -1,5 +1,4 @@
 import path from 'path'
-import endsWith from 'lodash.endswith'
 import has from 'has'
 import assign from 'object-assign'
 
@@ -79,7 +78,7 @@ module.exports = {
       // for unresolved, use source value.
       const extension = path.extname(resolvedPath || importPath).substring(1)
 
-      if (!extension || !endsWith(importPath, extension)) {
+      if (!extension || !importPath.endsWith(extension)) {
         if (isUseOfExtensionRequired(extension) && !isUseOfExtensionForbidden(extension)) {
           context.report({
             node: source,

src/rules/newline-after-import.js

@@ -4,10 +4,8 @@
  */
 
 import isStaticRequire from '../core/staticRequire'
-import findIndex from 'lodash.findindex'
 
 import debug from 'debug'
-
 const log = debug('eslint-plugin-import:rules:newline-after-import')
 
 //------------------------------------------------------------------------------
@@ -33,7 +31,7 @@ function getScopeBody(scope) {
 }
 
 function findNodeIndexInScopeBody(body, nodeToFind) {
-    return findIndex(body, (node) => containsNodeOrEqual(node, nodeToFind))
+    return body.findIndex((node) => containsNodeOrEqual(node, nodeToFind))
 }
 
 function getLineDifference(node, nextNode) {

src/rules/no-internal-modules.js

@@ -1,4 +1,3 @@
-import find from 'lodash.find'
 import minimatch from 'minimatch'
 
 import resolve from 'eslint-module-utils/resolve'
@@ -31,7 +30,7 @@ module.exports = {
 
     // test if reaching to this destination is allowed
     function reachingAllowed(importPath) {
-      return !!find(allowRegexps, re => re.test(importPath))
+      return allowRegexps.some(re => re.test(importPath))
     }
 
     // minimatch patterns are expected to use / path separators, like import

src/rules/order.js

@@ -1,6 +1,5 @@
 'use strict'
 
-import find from 'lodash.find'
 import importType from '../core/importType'
 import isStaticRequire from '../core/staticRequire'
 
@@ -34,7 +33,7 @@ function findOutOfOrder(imported) {
 
 function reportOutOfOrder(context, imported, outOfOrder, order) {
   outOfOrder.forEach(function (imp) {
-    const found = find(imported, function hasHigherRank(importedItem) {
+    const found = imported.find(function hasHigherRank(importedItem) {
       return importedItem.rank > imp.rank
     })
     context.report(imp.node, '`' + imp.name + '` import should occur ' + order +