feat: support up-to-date d3 versions (#224)

.eslintrc.json

@@ -0,0 +1,13 @@
+{
+  "extends": "eslint:recommended",
+  "parserOptions": {
+    "sourceType": "module",
+    "ecmaVersion": 11
+  },
+  "env": {
+    "es6": true
+  },
+  "rules": {
+    "no-cond-assign": 0
+  }
+}

.github/workflows/nodejs.yml

@@ -8,7 +8,7 @@ jobs:
 
     strategy:
       matrix:
-        node-version: [15.x]
+        node-version: [18.x]
 
     steps:
       - uses: actions/checkout@v1

README.md

@@ -31,7 +31,7 @@ You must include the [d3 library](http://d3js.org/) before including the slider
 The d3-simple-slider functionality is added to the `d3` global object.
 
 ```html
-<script src="./d3.v6.js"></script>
+<script src="./d3.v7.js"></script>
 <script src="./d3-simple-slider.js"></script>
 
 <p id="value"></p>
@@ -66,7 +66,7 @@ You can add the latest version of [d3-simple-slider hosted on unpkg](https://unp
 The d3-simple-slider functionality is added to the `d3` global object.
 
 ```html
-<script src="https://d3js.org/d3.v6.js"></script>
+<script src="https://d3js.org/d3.v7.js"></script>
 <script src="https://unpkg.com/d3-simple-slider"></script>
 
 <p id="value"></p>