https://developer.mozilla.org › ... › Web › JavaScript › Reference › Operators › Nullish_coalescing
Nullish coalescing operator (??) - JavaScript | MDN - MDN Web DocsThe 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.
https://www.javascripttutorial.net › javascript-nullish-coalescing-operator
JavaScript Nullish Coalescing Operator - JavaScript TutorialThe nullish coalescing operator returns the second value (value2) if the first value (value2) is null or undefined. Technically, the nullish coalescing operator is equivalent to the following block: if (result === null || result === undefined) {. result = value2;
Vidéos
https://javascript.info › nullish-coalescing-operator
Nullish coalescing operator - The Modern JavaScript TutorialThe nullish coalescing operator ?? provides a short way to choose the first “defined” value from a list. It’s used to assign default values to variables: // set height=100, if height is null or undefined height = height ?? 100;
https://stackoverflow.com › questions › 476436
Is there a "null coalescing" operator in JavaScript?Nullish coalescing operator (??) which is a logical operator that returns its right-hand side operand when its left-hand side operand is either null or undefined, and otherwise returns its left-hand side operand.
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://www.freecodecamp.org › news › nullish-coalescing-operator-in-javascript
How the Nullish Coalescing Operator Works in JavaScript - freeCodeCamp.orgES11 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. Let's get started.
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://blog.bitsrc.io › the-ultimate-guide-to-the-es2020-nullish-coalescing-operator...
The Ultimate Guide to the ES2020 Nullish Coalescing OperatorThe nullish coalescing (?? ) operator is an ES2020 feature that brings a new short-circuiting operator to JavaScript, and it works differently from its counterparts. In this article, we’ll first look at how short-circuiting in JavaScript works.
https://v8.dev › features › nullish-coalescing
Nullish coalescing - V8The nullish coalescing operator (?? ) acts very similar to the || operator, except that we don’t use “truthy” when evaluating the operator. Instead we use the definition of “nullish”, meaning “is the value strictly equal to null or undefined ”.
https://developer.mozilla.org › ... › Web › JavaScript › Reference › Operators › Nullish_coalescing
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.