feat: remove lodash (#784)

Author: dangreen

Diff for: .size-limit

@@ -7,7 +7,7 @@
   },
   {
     "path": "dist/index.js",
-    "limit": "9.5 KB",
+    "limit": "1.5 KB",
     "import": "Chart"
   },
   {
@@ -18,7 +18,7 @@
   },
   {
     "path": "dist/index.modern.js",
-    "limit": "9.5 KB",
+    "limit": "1.5 KB",
     "import": "Chart"
   }
 ]

Diff for: package.json

@@ -41,9 +41,7 @@
     "release": "standard-version",
     "cleanPublish": "yarn test && clean-publish"
   },
-  "dependencies": {
-    "lodash": "^4.17.19"
-  },
+  "dependencies": {},
   "peerDependencies": {
     "chart.js": "^3.5.0",
     "react": "^16.8.0 || ^17.0.0"

Diff for: src/chart.tsx

@@ -9,9 +9,6 @@ import React, {
 import type { Ref, MouseEvent } from 'react';
 import ChartJS from 'chart.js/auto';
 import type { ChartData, ChartType, DefaultDataPoint } from 'chart.js';
-import merge from 'lodash/merge';
-import assign from 'lodash/assign';
-import find from 'lodash/find';
 
 import { Props, ChartJSOrUndefined, TypedChartComponent } from './types';
 
@@ -49,7 +46,7 @@ function ChartComponent<
         : {
             datasets: [],
           };
-    } else return merge({}, data);
+    } else return data;
   }, [data, canvas.current]);
 
   const [chart, setChart] = useState<TypedChartJS>();
@@ -125,12 +122,11 @@ function ChartComponent<
     const { datasets: currentDataSets = [] } = chart.config.data;
 
     // copy values
-    assign(chart.config.data, newChartData);
+    Object.assign(chart.config.data, newChartData);
 
     chart.config.data.datasets = newDataSets.map((newDataSet: any) => {
       // given the new set, find it's current match
-      const currentDataSet = find(
-        currentDataSets,
+      const currentDataSet = currentDataSets.find(
         d => d.label === newDataSet.label && d.type === newDataSet.type
       );
 
@@ -146,10 +142,13 @@ function ChartComponent<
       }
 
       // copy in values
-      assign(currentDataSet.data, newDataSet.data);
+      Object.assign(currentDataSet.data, newDataSet.data);
 
       // apply dataset changes, but keep copied data
-      assign(currentDataSet, { ...newDataSet, data: currentDataSet.data });
+      Object.assign(currentDataSet, {
+        ...newDataSet,
+        data: currentDataSet.data,
+      });
       return currentDataSet;
     });