Add type definitions for turf

Author: Nkzn

turf/turf-tests.ts

@@ -441,11 +441,11 @@ var value = "oak";
 var filtered = turf.filter(features, key, value);
 
 // -- Test random --
-var points = turf.random('points', 100, {
+var randomPoints = turf.random('points', 100, {
   bbox: [-70, 40, -60, 60]
 });
 
-var points = turf.random('points', 100, {
+var randomPoints = turf.random('points', 100, {
   bbox: [-70, 40, -60, 60],
   num_vertices: 2,
   max_radial_length: 10
@@ -455,7 +455,7 @@ var points = turf.random('points', 100, {
 var filtered = turf.remove(points, 'marker-color', '#00f');
 
 // -- Test sample --
-var points = turf.random('points', 1000);
+var randomPoints = turf.random('points', 1000);
 var sample = turf.sample(points, 10);
 
 ///////////////////////////////////////////