Fixed maximum call stack size error on CGrid.vue (#213)

Author: ota-meshi

packages/vue-cheetah-grid/lib/CGrid.vue

@@ -26,15 +26,18 @@
 import { cheetahGrid, gridUpdateWatcher, extend } from './c-grid/utils'
 import { slotsToHeaderOptions, slotsToHeaderProps } from './c-grid/header-utils'
 
+const primitives = {
+  function: true, string: true, number: true, boolean: true, undefined: true, bigint: true, symbol: true
+}
 function deepObjectEquals (a, b) {
   if (a === b) {
     return true
   }
-  if (typeof a !== typeof b ||
+  if (typeof a !== typeof b || a == null || b == null ||
     a.constructor !== b.constructor) {
     return false
   }
-  if (typeof a === 'function') {
+  if (primitives[typeof a]) {
     return false
   }
   const aKeys = Object.keys(a).sort()

packages/vue-cheetah-grid/package.json

@@ -1,6 +1,6 @@
 {
   "name": "vue-cheetah-grid",
-  "version": "0.19.1",
+  "version": "0.19.2",
   "description": "Cheetah Grid for Vue.js",
   "main": "dist/vueCheetahGrid.js",
   "files": [