feat: add typescript solution for button toggle challenge

Author: kaylakremer

solutions/button-toggle.ts

@@ -0,0 +1,18 @@
+import React, { useState, ReactNode } from "react"
+import ReactDOM from "react-dom"
+
+function Toggle(): ReactNode {
+ const [toggle, setToggle] = useState<boolean>(true)
+
+ function handleClick() {
+ setToggle(!toggle)
+ }
+
+ return (
+ <button type="button" onClick={handleClick}>
+ {toggle ? "ON" : "OFF"}
+ </button>
+ )
+}
+
+ReactDOM.render(<Toggle />, document.getElementById("root"))