https://developer.mozilla.org › ... › Web › JavaScript › Reference › Operators › Optional_chaining

Learn how to use the optional chaining (?.) operator in JavaScript to access object properties or call functions without throwing errors if they are null or undefined. See syntax, examples, and short-circuiting behavior of this operator.

https://javascript.info › optional-chaining

Learn how to use the optional chaining ?. syntax to access nested object properties safely, even if an intermediate property doesn’t exist. See examples, advantages, limitations and alternatives of ?.

https://www.javascripttutorial.net › javascript-optional-chaining-operator

Learn how to use the optional chaining operator (?.) to access nested properties in a series of objects without checking for null or undefined values. See examples of using the operator with functions, methods, and nullish coalescing operator.

https://stackoverflow.com › questions › 58780817

TypeScript 3.7 now supports the optional chaining operator. Hence, you can write code such as: const value = a?.b?.c; I.e., you can use this operator to access properties of an object, where the o...

https://www-igm.univ-mlv.fr › ... › Web › JavaScript › Reference › Operators › Optional_chaining.html

The optional chaining (?.) operator accesses an object's property or calls a function. If the object accessed or function called using this operator is undefined or null, the expression short circuits and evaluates to undefined instead of throwing an error.

https://www.luisllamas.es › en › optional-chaining-operator

The optional chaining operator (?.) allows us to safely access properties and methods of objects when the object that has the property may be null or undefined. This avoids the need to write multiple conditional checks to ensure that each level of the access chain is defined. Before the introduction of the optional chaining operator in ...

https://medium.com › @mfarazali › optional-chaining-operator-in-javascript-5866c8cecc68

The optional chaining operator allows you to access properties and methods of an object without explicitly checking if each level of the nested structure exists. It short-circuits the evaluation...