Add TIL for react component props

Author: jamesmstone

typescript/react-component-prop.md

@@ -0,0 +1,19 @@
+# React get a components prop types
+
+When using TS with React you may want to get the types of another component.
+
+```tsx
+const MyButton: React.FC<{
+    value: string;
+    onChange: (newValue: string) => void;
+}> = () => {
+    return <button value={value} onchange={onChange} />;
+};
+type ButtonProps = React.ComponentProps<typeof MyButton>;
+
+// equivalent:
+
+type ButtonProps = { value: string; onChange: (newValue: string) => void };
+```
+
+ This can be particularly useful when using an external library that does not expose the types for a component.