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fix(core): fix potential NPE when reading default init options from global object in dev environment #19217

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Oct 18, 2023
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4 changes: 2 additions & 2 deletions src/core/echarts.ts
Original file line number Diff line number Diff line change
Expand Up @@ -418,11 +418,11 @@ class ECharts extends Eventful<ECEventDefinition> {
env.hasGlobalWindow ? window : global
) as any;

defaultRenderer = root.__ECHARTS__DEFAULT__RENDERER__ || defaultRenderer;
defaultRenderer = root?.__ECHARTS__DEFAULT__RENDERER__ ?? defaultRenderer;
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@plainheart plainheart Oct 18, 2023

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As the build target of ECharts is currently still ES3, to reduce the transpiled code size as possible, instead of ?. and ??, just fallback root to {} when it is not defined or simply surround the block (line 421- line 428) with if (root) {}.

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You're right. I overlooked that. I'll revise it.


defaultCoarsePointer = retrieve2(root.__ECHARTS__DEFAULT__COARSE_POINTER, defaultCoarsePointer);

const devUseDirtyRect = root.__ECHARTS__DEFAULT__USE_DIRTY_RECT__;
const devUseDirtyRect = root?.__ECHARTS__DEFAULT__USE_DIRTY_RECT__ ?? null;
defaultUseDirtyRect = devUseDirtyRect == null
? defaultUseDirtyRect
: devUseDirtyRect;
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Remove this three lines.

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