Bar graph added.

2020-07-28 00:48:25 +05:30
parent d0a6e2667d
commit 194b41124d
3468 changed files with 640611 additions and 169 deletions
--- a/node_modules/d3-hierarchy/src/accessors.js
+++ b/node_modules/d3-hierarchy/src/accessors.js
@@ -0,0 +1,8 @@
+export function optional(f) {
+  return f == null ? null : required(f);
+}
+
+export function required(f) {
+  if (typeof f !== "function") throw new Error;
+  return f;
+}