Rename escapeString.md to escapeHTML.md

snippets/escapeHTML.md

@@ -0,0 +1,19 @@
+### escapeHTML
+
+Escapes a string for use in HTML.
+
+Use `String.replace()` with a regex that matches the characters that need to be escaped, using a callback function to replace each character instance with its associated escaped character using a dictionary (object).
+
+```js
+const escapeHTML = str => str.replace(/[&<>'"]/g, tag => ({
+    '&': '&amp;',
+    '<': '&lt;',
+    '>': '&gt;',
+    '\'': '&#39;',
+    '"': '&quot;'
+  })[tag] || tag);
+```
+
+```js
+escapeHTML('<a href="#">Me & you</a>'); // '&lt;a href=&quot;#&quot;&gt;Me &amp; you&lt;/a&gt;'
+```