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.freecodecamp.org › news › javascript-advanced-operators
Advanced JavaScript Operators – Nullish Coalescing, Optional Chaining ...In this article, I'm going to teach you how to use three advanced JavaScript operators: the Nullish Coalescing, Optional Chaining, and Destructuring Assignment operators. These three operators will help you write clearer and less error-prone code.
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https://blog.logrocket.com › optional-chaining-and-nullish-coalescing-in-javascript
Optional chaining and nullish coalescing in JavaScriptOptional chaining and nullish coalescing, both at stage 3 of the TC39 process, may be the most significant improvement for JavaScript since async/await.
https://delicious-insights.com › ... › js-optional-chaining-nullish-coalescing
Optional chaining et Nullish coalescing - Delicious InsightsBienvenue dans notre onzième article de la série JS idiomatique. Aujourd’hui on se penche sur une série d’opérateurs arrivés avec ES2020, qui simplifient considérablement notre code : ceux du Optional Chaining et du Nullish Coalescing. Tu vas voir, ça change la vie !
https://www.digitalocean.com › ... › tutorials › js-v8-optional-chaining-nullish-coalescing
V8's V8: Optional Chaining and Nullish Coalescing in JavaScriptAn overview of how to use the V8 engine’s optional chaining and nullish coalescing feature in JavaScript.
https://dmitripavlutin.com › javascript-optional-chaining
How to Use JavaScript Optional Chaining - Dmitri Pavlutin BlogHow to Use JavaScript Optional Chaining. Updated December 22, 2019. javascript optional chaining nullish coalescing. 6 Comments. There are JavaScript features that vastly change the way you code. Starting from ES2015 and beyond, the features that influenced the most my code are destructuring, arrow functions, classes, and modules system.
https://www.luisllamas.es › en › optional-chaining-operator
Optional Chaining Operator `?.` in JavaScriptThe 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://stackoverflow.com › questions › 476436
Is there a "null coalescing" operator in JavaScript?JavaScript now supports the nullish coalescing operator (??). It returns its right-hand-side operand when its left-hand-side operand is null or undefined , and otherwise returns its left-hand-side operand.
https://www.javascripttutorial.net › javascript-optional-chaining-operator
JavaScript Optional Chaining Operator - JavaScript TutorialThe optional chaining operator (?.) is like a shortcut for accessing nested properties in a series of objects. Instead of having to check if each step in the chain is empty (null or undefined), you can use the operator ?. to directly access the desired property.
https://www.freecodecamp.org › news › javascript-optional-chaining
How to Use Optional Chaining in JavaScript - freeCodeCamp.orgOptional chaining is a safe and concise way to perform access checks for nested object properties. The optional chaining operator ?. takes the reference to its left and checks if it is undefined or null. If the reference is either of these nullish values, the checks will stop and return undefined.
