https://developer.mozilla.org › ... › Web › JavaScript › Reference › Operators › Optional_chaining
Optional chaining (?.) - JavaScript | MDN - MDN Web DocsLearn how to use the optional chaining (?.) operator to access object properties or call functions without throwing errors if they are null or undefined. See syntax, description, examples, and limitations of this feature.
https://javascript.info › optional-chaining
Optional chaining - The Modern JavaScript TutorialLearn 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 ?. in this tutorial.
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https://fr.javascript.info › optional-chaining
Chaînage optionnel - JavaScriptLe chaînage optionnel ?. est un moyen sécurisé d’accéder aux propriétés d’objet imbriquées, même si une propriété intermédiaire n’existe pas. Le problème de la “propriété non existante” Si vous venez de commencer à lire le tutoriel et à apprendre JavaScript, peut-être que le problème ne vous a pas encore touché, mais c’est assez courant.
https://www.javascripttutorial.net › javascript-optional-chaining-operator
JavaScript Optional Chaining Operator - JavaScript TutorialLearn how to use the optional chaining operator (?.) to access nested properties in a series of objects without extra checks. See examples of using the operator with functions, methods, and nullish coalescing.
https://www.freecodecamp.org › news › optional-chaining-javascript
Optional Chaining in JavaScript – Explained with ExamplesLearn how to use the optional chaining operator (?. ) to access nested properties and methods without null or undefined checks. See examples of dynamic property access, nested methods, and short-circuiting behavior.
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://www.freecodecamp.org › news › javascript-optional-chaining-explained
JavaScript Optional Chaining `?.` Explained - How it Works and When to ...Learn how to use optional chaining, a new feature in ES2020, to access deeply nested objects without null checks. See examples, use cases, and how to enable it in browsers and Node.
https://dmitripavlutin.com › javascript-optional-chaining
How to Use JavaScript Optional Chaining - Dmitri Pavlutin BlogLearn how to use optional chaining, a new feature in ES2020, to access deep properties from objects without null or undefined errors. See examples, benefits, and alternatives of optional chaining in JavaScript and TypeScript.
https://runebook.dev › fr › docs › javascript › operators › optional_chaining
JavaScript - Optional chaining [fr] - Runebook.devCela se traduit par des expressions plus courtes et plus simples lors de l'accès aux propriétés chaînées lorsqu'il existe la possibilité qu'une référence soit manquante. Cela peut également être utile lors de l'exploration du contenu d'un objet lorsqu'il n'existe aucune garantie connue quant aux propriétés requises.
https://www.freecodecamp.org › news › javascript-optional-chaining
How to Use Optional Chaining in JavaScript - freeCodeCamp.orgLearn how to use optional chaining (?. operator) to access nested object properties safely and concisely. Optional chaining is a feature of ES2020 that can also be used with functions and nullish coalescing (?? operator).
