fix(core): fix potential NPE when reading default init options from g…

…lobal object in dev environment (#19217)

* fix: '__ECHARTS__DEFAULT__RENDERER__' of undefined

* fix: Reduce converted code size

* fix: Remove ternary operations

src/core/echarts.ts

@@ -412,20 +412,19 @@ class ECharts extends Eventful<ECEventDefinition> {
  let defaultRenderer = 'canvas';
  let defaultCoarsePointer: 'auto' | boolean = 'auto';
  let defaultUseDirtyRect = false;
+
  if (__DEV__) {
  const root = (
  /* eslint-disable-next-line */
  env.hasGlobalWindow ? window : global
  ) as any;
 
- defaultRenderer = root.__ECHARTS__DEFAULT__RENDERER__ || defaultRenderer;
-
- defaultCoarsePointer = retrieve2(root.__ECHARTS__DEFAULT__COARSE_POINTER, defaultCoarsePointer);
+ if (root) {
+ defaultRenderer = retrieve2(root.__ECHARTS__DEFAULT__RENDERER__, defaultRenderer);
+ defaultCoarsePointer = retrieve2(root.__ECHARTS__DEFAULT__COARSE_POINTER, defaultCoarsePointer);
+ defaultUseDirtyRect = retrieve2(root.__ECHARTS__DEFAULT__USE_DIRTY_RECT__, defaultUseDirtyRect);
+ }
 
- const devUseDirtyRect = root.__ECHARTS__DEFAULT__USE_DIRTY_RECT__;
- defaultUseDirtyRect = devUseDirtyRect == null
- ? defaultUseDirtyRect
- : devUseDirtyRect;
  }
 
  const zr = this._zr = zrender.init(dom, {