Converted turf-square to Typescript (#2648)

* Converted turf-square to Typescript.

packages/turf-square/README.md

@@ -14,11 +14,11 @@ would contain the input.
 ### Examples
 
 ```javascript
-var bbox = [-20, -20, -15, 0];
-var squared = turf.square(bbox);
+const bbox = [-20, -20, -15, 0];
+const squared = turf.square(bbox);
 
 //addToMap
-var addToMap = [turf.bboxPolygon(bbox), turf.bboxPolygon(squared)]
+const addToMap = [turf.bboxPolygon(bbox), turf.bboxPolygon(squared)]
 ```
 
 Returns **[BBox][1]** a square surrounding `bbox`

packages/turf-square/bench.ts

@@ -1,14 +1,15 @@
-import Benchmark from "benchmark";
+import { BBox } from "geojson";
+import Benchmark, { Event } from "benchmark";
 import { square } from "./index.js";
 
-var bbox = [0, 0, 5, 10];
+const bbox: BBox = [0, 0, 5, 10];
 
-var suite = new Benchmark.Suite("turf-square");
+const suite = new Benchmark.Suite("turf-square");
 suite
   .add("turf-square", function () {
     square(bbox);
   })
-  .on("cycle", function (event) {
+  .on("cycle", function (event: Event) {
     console.log(String(event.target));
   })
   .run();

packages/turf-square/index.js → packages/turf-square/index.ts

@@ -1,4 +1,5 @@
 import { distance } from "@turf/distance";
+import { BBox } from "geojson";
 
 /**
  * Takes a bounding box and calculates the minimum square bounding box that
@@ -8,13 +9,13 @@ import { distance } from "@turf/distance";
  * @param {BBox} bbox extent in [west, south, east, north] order
  * @returns {BBox} a square surrounding `bbox`
  * @example
- * var bbox = [-20, -20, -15, 0];
- * var squared = turf.square(bbox);
+ * const bbox = [-20, -20, -15, 0];
+ * const squared = turf.square(bbox);
  *
  * //addToMap
- * var addToMap = [turf.bboxPolygon(bbox), turf.bboxPolygon(squared)]
+ * const addToMap = [turf.bboxPolygon(bbox), turf.bboxPolygon(squared)]
  */
-function square(bbox) {
+function square(bbox: BBox): BBox {
   var west = bbox[0];
   var south = bbox[1];
   var east = bbox[2];

packages/turf-square/package.json

@@ -51,14 +51,19 @@
     "test:tape": "tsx test.ts"
   },
   "devDependencies": {
+    "@types/benchmark": "^2.1.5",
+    "@types/tape": "^4.2.32",
     "benchmark": "^2.1.4",
     "npm-run-all": "^4.1.5",
     "tape": "^5.7.2",
     "tsup": "^8.0.1",
-    "tsx": "^4.6.2"
+    "tsx": "^4.6.2",
+    "typescript": "^5.2.2"
   },
   "dependencies": {
     "@turf/distance": "workspace:^",
-    "@turf/helpers": "workspace:^"
+    "@turf/helpers": "workspace:^",
+    "@types/geojson": "7946.0.8",
+    "tslib": "^2.6.2"
   }
 }

packages/turf-square/test.ts

@@ -1,12 +1,13 @@
+import { BBox } from "geojson";
 import test from "tape";
 import { square } from "./index.js";
 
 test("square", function (t) {
-  var bbox1 = [0, 0, 5, 10];
-  var bbox2 = [0, 0, 10, 5];
+  const bbox1: BBox = [0, 0, 5, 10];
+  const bbox2: BBox = [0, 0, 10, 5];
 
-  var sq1 = square(bbox1);
-  var sq2 = square(bbox2);
+  const sq1 = square(bbox1);
+  const sq2 = square(bbox2);
 
   t.deepEqual(sq1, [-2.5, 0, 7.5, 10]);
   t.deepEqual(sq2, [0, -2.5, 10, 7.5]);