Use native crypto.randomUUID() instead of hat module

package.json

@@ -70,8 +70,7 @@
  "@mapbox/geojson-area": "^0.2.2",
  "@mapbox/geojson-normalize": "^0.0.1",
  "@mapbox/point-geometry": "^0.1.0",
- "fast-deep-equal": "^3.1.3",
- "hat": "0.0.3"
+ "fast-deep-equal": "^3.1.3"
  },
  "files": [
  "src",

src/api.js

@@ -1,6 +1,5 @@
 import isEqual from 'fast-deep-equal';
 import normalize from '@mapbox/geojson-normalize';
-import hat from 'hat';
 import featuresAt from './lib/features_at.js';
 import stringSetsAreEqual from './lib/string_sets_are_equal.js';
 import * as Constants from './constants.js';
@@ -76,7 +75,7 @@ export default function(ctx, api) {
  const featureCollection = JSON.parse(JSON.stringify(normalize(geojson)));
 
  const ids = featureCollection.features.map((feature) => {
- feature.id = feature.id || hat();
+ feature.id = feature.id || crypto.randomUUID();
 
  if (feature.geometry === null) {
  throw new Error('Invalid geometry: null');

src/feature_types/feature.js

@@ -1,11 +1,10 @@
-import hat from 'hat';
 import * as Constants from '../constants.js';
 
 const Feature = function(ctx, geojson) {
  this.ctx = ctx;
  this.properties = geojson.properties || {};
  this.coordinates = geojson.geometry.coordinates;
- this.id = geojson.id || hat();
+ this.id = geojson.id || crypto.randomUUID();
  this.type = geojson.geometry.type;
 };
 

src/feature_types/multi_feature.js

@@ -1,4 +1,3 @@
-import hat from 'hat';
 import Feature from './feature.js';
 import * as Constants from '../constants.js';
 
@@ -33,7 +32,7 @@ MultiFeature.prototype = Object.create(Feature.prototype);
 MultiFeature.prototype._coordinatesToFeatures = function(coordinates) {
  const Model = this.model.bind(this);
  return coordinates.map(coords => new Model(this.ctx, {
- id: hat(),
+ id: crypto.randomUUID(),
  type: Constants.geojsonTypes.FEATURE,
  properties: {},
  geometry: {

test/utils/create_feature.js

@@ -1,11 +1,8 @@
-import hat from 'hat';
 import getGeoJSON from './get_geojson.js';
 
-const hatRack = hat.rack();
-
 export default function createFeature(featureType) {
  const feature = Object.assign({
- id: hatRack(),
+ id: crypto.randomUUID(),
  properties: {}
  }, getGeoJSON(featureType));
  feature.toGeoJSON = () => feature;