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fix(app.tsx): add safe check for readyPromise (#2489)

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* fix(app.tsx): add safe check for readyPromise

* make type-safe

Co-authored-by: dwelle <luzar.david@gmail.com>
This commit is contained in:
Aakansha Doshi 2020-12-09 01:35:08 +05:30 • committed by GitHub
parent fba37e422d
commit 8f8fd023f8
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4 changed files with 15 additions and 8 deletions
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6
src/components/App.tsx
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@ -301,9 +301,9 @@ class App extends React.Component<ExcalidrawProps, AppState> {
};
if (excalidrawRef) {
const readyPromise =
typeof excalidrawRef === "function"
? resolvablePromise<ExcalidrawImperativeAPI>()
: excalidrawRef.current!.readyPromise;
("current" in excalidrawRef && excalidrawRef.current?.readyPromise) ||
resolvablePromise<ExcalidrawImperativeAPI>();
const api: ExcalidrawImperativeAPI = {
ready: true,
readyPromise,