https://developer.mozilla.org › en-US › docs › Web › JavaScript › Reference › Operators › Nullish...
Nullish coalescing operator (??) - JavaScript | MDNThe nullish coalescing (??) operator is a logical operator that returns its right-hand side operand when its left-hand side operand is null or undefined, and otherwise returns its left-hand side operand.
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When should I use ?? (nullish coalescing) vs || (logical OR)?The OR operator || uses the right value if left is falsy, while the nullish coalescing operator ?? uses the right value if left is null or undefined. These operators are often used to provide a default value if the first one is missing.
https://www.javascripttutorial.net › javascript-nullish-coalescing-operator
JavaScript Nullish Coalescing Operator - JavaScript TutorialThe nullish coalescing operator (??) is a logical operator that accepts two values and returns the second value if the first one is null or undefined. The nullish coalescing operator is short-circuited and cannot directly combine with the logical AND or OR operator.
https://javascript.info › nullish-coalescing-operator
Nullish coalescing operator - The Modern JavaScript TutorialThe nullish coalescing operator is written as two question marks ??. As it treats null and undefined similarly, we’ll use a special term here, in this article. For brevity, we’ll say that a value is “defined” when it’s neither null nor undefined. The result of a ?? b is: if a isn’t defined, then b.
https://fr.javascript.info › nullish-coalescing-operator
L'opérateur de coalescence des nuls - JavaScriptL’opérateur de coalescence des nuls ?? fournit un moyen court de choisir une valeur “définie” à partir d’une liste. Il est utilisé pour attribuer des valeurs par défaut aux variables : // configurer height = 100, si height est null ou undefined. height = height ?? 100;
https://www.freecodecamp.org › news › what-is-the-nullish-coalescing-operator-in...
What is the Nullish Coalescing Operator in JavaScript, and how is it usefulThe Nullish Coalescing Operator is a new logical operator in JavaScript introduced in ES 2020. In this article, we'll understand how this operator works. There are over four logical operators in JavaScript: the AND &&, OR ||, NOT !, and the Nullish Coalescing Operator ??.
https://masteringjs.io › tutorials › fundamentals › nullish-coalescing
The Nullish Coalescing Operator ?? in JavaScript - Mastering JSThe nullish coalescing operator provides a concise syntax for setting a default value if the given value is nullish. null and undefined are the only nullish values in JavaScript.
https://www.freecodecamp.org › news › nullish-coalescing-operator-in-javascript
How the Nullish Coalescing Operator Works in JavaScriptES11 has added a nullish coalescing operator which is denoted by double question marks, like this: ??. In this article, we will explore why it's so useful and how to use it.
https://dev.to › tscharke › nullish-coalescing-operator-explained-54ao
Nullish coalescing operator - explained - DEV CommunityThe Nullish coalescing operator is a new and additional JavaScript operator that has been available since June 2020 with ECMAScript 2020 (ES2020) of the programming language. In addition to the well-known binary logical operators && (AND) and || (OR), it is the third operator non-binary and has the notation ??.
https://developer.mozilla.org › fr › docs › Web › JavaScript › Reference › Operators › Nullish...
Opérateur de coalescence des nuls (Nullish coalescing operator)L'opérateur de coalescence des nuls (??), est un opérateur logique qui renvoie son opérande de droite lorsque son opérande de gauche vaut null ou undefined et qui renvoie son opérande de gauche sinon.