Add typescript definition

index.d.ts

@@ -0,0 +1,36 @@
+import * as React from "react";
+
+interface TrackVisibilityProps {
+  /**
+  * Define if the visibility need to be tracked once
+  */
+  once?: boolean;
+
+  /**
+  * Tweak the throttle interval
+  * Check https://css-tricks.com/debouncing-throttling-explained-examples/ for more details
+  */
+  throttleInterval?: number;
+
+  /**
+  * Additional style to apply
+  */
+  style?: object;
+
+  /**
+  * Additional className to apply
+  */
+  className?: string;
+
+  /**
+  * Define an offset. Can be useful for lazy loading
+  */
+  offset?: number;
+
+  /**
+  * Update the visibility state as soon as a part of the tracked component is visible
+  */
+  partialVisibility?: boolean;
+}
+
+export class TrackVisibility extends React.Component<TrackVisibilityProps> {}

package.json

@@ -12,6 +12,7 @@
     "screen"
   ],
   "main": "lib/index.js",
+  "typings": "./index.d.ts",
   "scripts": {
     "lint": "eslint src/",
     "pretest": "npm run lint",