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JavaScript - optional chaining with arrays and functions

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Created by:
Wayne
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In this article, we would like to show you how to use optional chaining with arrays and functions in JavaScript.

1. With arrays

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In this example, we use optional chaining (?.) with an array of objects to prevent errors if a reference is null or undefined.

2. With functions

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In this example, we use optional chaining (?.) to call a function inside the object and prevent errors if a reference is null or undefined.

 

References

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  1. Optional chaining (?.) - JavaScript | MDN

Alternative titles

  1. JavaScript - how to use optional chaining with arrays and functions
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