Kebab file names

snippets/is-alpha-numeric.md

@@ -0,0 +1,22 @@
+---
+title: String is alphanumeric
+tags: string,regexp
+cover: mountain-lake-cottage-2
+firstSeen: 2020-09-06T07:59:16+03:00
+lastUpdated: 2020-10-20T23:02:01+03:00
+---
+
+Checks if a string contains only alphanumeric characters.
+
+- Use `RegExp.prototype.test()` to check if the input string matches against the alphanumeric regexp pattern.
+
+```js
+const isAlphaNumeric = str => /^[a-z0-9]+$/gi.test(str);
+```
+
+```js
+isAlphaNumeric('hello123'); // true
+isAlphaNumeric('123'); // true
+isAlphaNumeric('hello 123'); // false (space character is not alphanumeric)
+isAlphaNumeric('#$hello'); // false
+```