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How to Solve Object is Possibly 'undefined'. In Angular And TypeScript
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This video is about fixing or solving the Angular or typescript issue object is possibily undefined.
With the release of TypeScript 3.7, optional chaining (the ? operator) is now officially available.
As such, you can simplify your expression to the following:
const data = change?.after?.data();
another way to to initialise your variable or to make it optional.
With the release of TypeScript 3.7, optional chaining (the ? operator) is now officially available.
As such, you can simplify your expression to the following:
const data = change?.after?.data();
another way to to initialise your variable or to make it optional.
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