lodash cleanup (#747)

* add own range() function

* lodash cleanup

* remove redundant fill range implementations

* remove use of _.get

* sync test babel config with build

* update tests to match new range implementation

client/src/util/stateManager/colorHelpers.js

@@ -1,12 +1,12 @@
 /*
 Helper functions for the embedded graph colors
 */
-import _ from "lodash";
 import * as d3 from "d3";
 import { interpolateRainbow, interpolateCool } from "d3-scale-chromatic";
 import * as globals from "../../globals";
 import parseRGB from "../parseRGB";
 import finiteExtent from "../finiteExtent";
+import { range } from "../range";
 
 /*
 create new colors state object.   Paramters:
@@ -37,9 +37,7 @@ function createColors(world, colorMode = null, colorAccessor = null) {
 }
 
 function createColorsByCategoricalMetadata(world, accessor) {
-  const { categories } = _.filter(world.schema.annotations.obs, {
-    name: accessor
-  })[0];
+  const { categories } = world.schema.annotations.obsByName[accessor];
 
   const scale = d3
     .scaleSequential(interpolateRainbow)
@@ -67,7 +65,7 @@ function createColorsByContinuousMetadata(world, accessor) {
   const scale = d3
     .scaleQuantile()
     .domain([min, max])
-    .range(_.range(colorBins - 1, -1, -1));
+    .range(range(colorBins - 1, -1, -1));
 
   /* pre-create colors - much faster than doing it for each obs */
   const colors = new Array(colorBins);
@@ -97,7 +95,7 @@ function createColorsByExpression(world, accessor) {
   const scale = d3
     .scaleQuantile()
     .domain([min, max])
-    .range(_.range(colorBins - 1, -1, -1));
+    .range(range(colorBins - 1, -1, -1));
 
   /* pre-create colors - much faster than doing it for each obs */
   const colors = new Array(colorBins);

client/src/util/stateManager/controlsHelpers.js

@@ -5,7 +5,7 @@ Helper functions for the controls reducer
 import _ from "lodash";
 
 import * as globals from "../../globals";
-import { fillRange } from "../typedCrossfilter/util";
+import { rangeFill as fillRange } from "../range";
 import {
   userDefinedDimensionName,
   diffexpDimensionName

client/src/util/stateManager/universe.js

@@ -122,15 +122,15 @@ function reconcileSchemaCategoriesWithSummary(universe) {
   cases, add a 'categories' field to the schema so it is accessible.
   */
 
-  _.forEach(universe.schema.annotations.obs, s => {
+  universe.schema.annotations.obs.forEach(s => {
     if (
       s.type === "string" ||
       s.type === "boolean" ||
       s.type === "categorical"
     ) {
       const categories = _.union(
-        _.get(s, "categories", []),
-        _.get(universe.obsAnnotations.col(s.name).summarize(), "categories", [])
+        s.categories ?? [],
+        universe.obsAnnotations.col(s.name).summarize().categories ?? []
       );
       s.categories = categories;
     }