trim lodash usage, remove unused module

packages/squiggle-lang/__tests__/Lodash_test.res

@@ -1,20 +0,0 @@
-open Jest
-open Expect
-
-let makeTest = (~only=false, str, item1, item2) =>
-  only
-    ? Only.test(str, () => expect(item1)->toEqual(item2))
-    : test(str, () => expect(item1)->toEqual(item2))
-
-describe("Lodash", () =>
-  describe("Lodash", () => {
-    makeTest("min", Lodash.min([1, 3, 4]), 1)
-    makeTest("max", Lodash.max([1, 3, 4]), 4)
-    makeTest("uniq", Lodash.uniq([1, 3, 4, 4]), [1, 3, 4])
-    makeTest(
-      "countBy",
-      Lodash.countBy([1, 3, 4, 4], r => r),
-      Js.Dict.fromArray([("1", 1), ("3", 1), ("4", 2)]),
-    )
-  })
-)

packages/squiggle-lang/src/js/SqPointSetDist.ts

@@ -1,4 +1,4 @@
-import * as _ from "lodash";
+import zipWith from "lodash/zipWith";
 import { wrapDistribution } from "./SqDistribution";
 import * as RSPointSetDist from "../rescript/ForTS/ForTS_Distribution/ForTS_Distribution_PointSetDistribution.gen";
 import { pointSetDistributionTag as Tag } from "../rescript/ForTS/ForTS_Distribution/ForTS_Distribution_PointSetDistribution_tag";
@@ -16,7 +16,7 @@ const shapePoints = (
 ): SqPoint[] => {
   let xs = x.xyShape.xs;
   let ys = x.xyShape.ys;
-  return _.zipWith(xs, ys, (x, y) => ({ x, y }));
+  return zipWith(xs, ys, (x, y) => ({ x, y }));
 };
 
 export const wrapPointSetDist = (value: T) => {

packages/squiggle-lang/src/rescript/Distributions/SampleSetDist/KdeLibrary.js

@@ -1,5 +1,6 @@
 const pdfast = require("pdfast");
-const _ = require("lodash");
+const filter = require("lodash/filter");
+const isFinite = require("lodash/isFinite");
 
 const samplesToContinuousPdf = (
   samples,
@@ -8,12 +9,12 @@ const samplesToContinuousPdf = (
   min = false,
   max = false
 ) => {
-  let _samples = _.filter(samples, _.isFinite);
-  if (_.isFinite(min)) {
-    _samples = _.filter(_samples, (r) => r > min);
+  let _samples = filter(samples, isFinite);
+  if (isFinite(min)) {
+    _samples = filter(_samples, (r) => r > min);
   }
-  if (_.isFinite(max)) {
-    _samples = _.filter(_samples, (r) => r < max);
+  if (isFinite(max)) {
+    _samples = filter(_samples, (r) => r < max);
   }
 
   // The pdf that's created from this function is not a pdf but a pmf. y values

packages/squiggle-lang/src/rescript/Utility/Lodash.res

@@ -1,5 +0,0 @@
-@module("lodash") external min: array<'a> => 'a = "min"
-@module("lodash") external max: array<'a> => 'a = "max"
-@module("lodash") external uniq: array<'a> => array<'a> = "uniq"
-@module("lodash")
-external countBy: (array<'a>, 'a => 'b) => Js.Dict.t<int> = "countBy"

packages/squiggle-lang/tsconfig.json

@@ -12,7 +12,8 @@
     "declarationDir": "./dist",
     "declaration": true,
     "composite": true,
-    "target": "ES6"
+    "target": "ES6",
+    "esModuleInterop": true
   },
   "include": ["src/**/*"],
   "exclude": ["node_modules", "**/*.spec.ts", "webpack.config.js"]