Rename unescapeString.md to unescapeHTML.md

snippets/unescapeHTML.md

@@ -0,0 +1,17 @@
+### unescapeHTML
+
+Unescapes escaped HTML characters.
+
+Use `String.replace()` with a regex that matches the characters that need to be escaped, using a callback function to replace each escaped character instance with its associated unescaped character using a dictionary (object).
+
+```js
+const unescapeHTML = str => str.replace(/[&<>'"]/g, tag => ({
+    '&amp;': '&',
+    '&lt;': '<',
+    '&gt;': '>',
+    '&#39;': '\'',
+    '&quot;': '"'
+  })[tag] || tag);```
+```js
+unescapeHTML('&lt;a href=&quot;#&quot;&gt;Me &amp; you&lt;/a&gt;'); // '<a href="#">Me & you</a>'
+```