feat: package as a module

.eslintrc.yml

@@ -8,7 +8,7 @@ env:
   node: true
 
 parserOptions:
-  ecmaVersion: 2018
+  ecmaVersion: 2022
   sourceType: module
   ecmaFeatures:
     impliedStrict: true

.github/workflows/ci.yml

@@ -17,9 +17,10 @@ jobs:
       fail-fast: false
 
     steps:
-    - uses: actions/checkout@v2
-    - name: Use Node.js
-      uses: actions/setup-node@v1
+    - uses: actions/checkout@v3
+    - uses: actions/setup-node@v3
+      with:
+        cache: npm
     - run: |
         npm ci
         npm run build
@@ -52,4 +53,4 @@ jobs:
       uses: coverallsapp/github-action@master
       with:
         github-token: ${{ secrets.github_token }}
-        parallel-finished: true
+        parallel-finished: true

.github/workflows/compressed-size.yml

@@ -9,7 +9,7 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-    - uses: actions/checkout@v2
+    - uses: actions/checkout@v3
     - uses: preactjs/compressed-size-action@v2
       with:
         repo-token: "${{ secrets.GITHUB_TOKEN }}"

.github/workflows/npmpublish.yml

@@ -18,9 +18,10 @@ jobs:
   test:
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v2
-    - name: Use Node.js
-      uses: actions/setup-node@v1
+    - uses: actions/checkout@v3
+    - uses: actions/setup-node@v3
+      with:
+        cache: npm
     - name: Test
       run: |
         npm ci
@@ -29,10 +30,10 @@ jobs:
     needs: [test, setup]
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v2
-      - uses: actions/setup-node@v1
+      - uses: actions/checkout@v3
+      - uses: actions/setup-node@v3
         with:
-          node-version: 12
+          cache: npm
           registry-url: https://registry.npmjs.org/
       - name: Setup and build
         run: |

.gitignore

@@ -3,3 +3,4 @@ coverage/
 dist/
 node_modules/
 *.stackdump
+.DS_Store

karma.conf.js → karma.conf.cjs

@@ -1,10 +1,10 @@
 const istanbul = require('rollup-plugin-istanbul');
 const resolve = require('@rollup/plugin-node-resolve').default;
-const builds = require('./rollup.config');
 const yargs = require('yargs');
 const env = process.env.NODE_ENV;
 
-module.exports = function(karma) {
+module.exports = async function(karma) {
+  const builds = (await import('./rollup.config.js')).default;
   const args = yargs
     .option('verbose', {default: false})
     .argv;
@@ -54,7 +54,7 @@ module.exports = function(karma) {
     },
 
     files: [
-      {pattern: 'node_modules/chart.js/dist/chart.js'},
+      {pattern: 'node_modules/chart.js/dist/chart.umd.js'},
       {pattern: 'src/index.js', watched: false},
       {pattern: 'test/index.js'},
       {pattern: 'test/specs/**/**.js'}