diff --git a/snippets/padNumber.md b/snippets/padNumber.md
new file mode 100644
index 000000000..c2c781019
--- /dev/null
+++ b/snippets/padNumber.md
@@ -0,0 +1,16 @@
+---
+title: padNumber
+tags: string,math,beginner
+---
+
+Pads a given number to the specified length.
+
+- Use `String.prototype.padStart()` to pad the number to specified length, after converting it to a string.
+
+```js
+const padNumber = (n, l) => `${n}`.padStart(l, '0');
+```
+
+```js
+padNumber(1234, 6); // '001234'
+```