Merge pull request #122 from github/lint-import-statements

Lint import statements

Author: keithamus

.eslintrc.json

@@ -4,7 +4,9 @@
   "extends": ["plugin:github/recommended", "plugin:github/typescript", "plugin:github/browser"],
   "rules": {
     "no-invalid-this": "off",
-    "@typescript-eslint/no-invalid-this": ["error"]
+    "@typescript-eslint/no-invalid-this": ["error"],
+    "import/extensions": ["error", "ignorePackages"],
+    "@typescript-eslint/consistent-type-imports": ["error", {"prefer": "type-imports"}]
   },
   "overrides": [
     {

src/attr.ts

@@ -1,4 +1,4 @@
-import type {CustomElement} from './custom-element'
+import type {CustomElement} from './custom-element.js'
 
 const attrs = new WeakMap<Record<PropertyKey, unknown>, string[]>()
 type attrValue = string | number | boolean

src/controller.ts

@@ -2,7 +2,7 @@ import {register} from './register.js'
 import {bind} from './bind.js'
 import {autoShadowRoot} from './auto-shadow-root.js'
 import {defineObservedAttributes, initializeAttrs} from './attr.js'
-import type {CustomElement} from './custom-element'
+import type {CustomElement} from './custom-element.js'
 
 /**
  * Controller is a decorator to be used over a class that extends HTMLElement.

src/register.ts

@@ -1,4 +1,4 @@
-import type {CustomElement} from './custom-element'
+import type {CustomElement} from './custom-element.js'
 
 /**
  * Register the controller as a custom element.