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Supérieur ou égal (>=) - JavaScript | MDN
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Cette page a été traduite à partir de l'anglais par la communauté. Vous pouvez contribuer en rejoignant la communauté francophone sur MDN Web Docs.
Supérieur ou égal (>=)
Baseline
Widely available
This feature is well established and works across many devices and browser versions. It’s been available across browsers since juillet 2015.
L'opérateur supérieur ou égal (>=) renvoie true si l'opérande gauche est supérieur ou égal à l'opérande droit et false sinon.
Exemple interactif
console.log(5 >= 3);
// Expected output: true
console.log(3 >= 3);
// Expected output: true
// Compare bigint to number
console.log(3n >= 5);
// Expected output: false
console.log("ab" >= "aa");
// Expected output: true
Syntaxe
js
x >= y;
Description
Les opérandes sont comparés avec l'algorithme de comparaison abstraite relationnelle. Voir la documentation de l'opérateur inférieur strict pour un résumé de cet algorithme.
Exemples
Comparaison numérique
js
console.log(5 >= 3); // true
console.log(3 >= 3); // true
console.log(3 >= 5); // false
Comparaison entre un nombre et un BigInt
js
console.log(5n >= 3); // true
console.log(3 >= 3n); // true
console.log(3 >= 5n); // false
Comparaison entre chaînes de caractères
js
console.log("a" >= "b"); // false
console.log("a" >= "a"); // true
console.log("a" >= "3"); // true
Comparaison entre nombres et chaînes de caractères
js
console.log("5" >= 3); // true
console.log("3" >= 3); // true
console.log("3" >= 5); // false
console.log("coucou" >= 5); // false
console.log(5 >= "coucou"); // false
Comparaison avec des booléens, null, undefined, NaN
js
console.log(true >= false); // true
console.log(true >= true); // true
console.log(false >= true); // false
console.log(true >= 0); // true
console.log(true >= 1); // true
console.log(null >= 0); // true
console.log(1 >= null); // true
console.log(undefined >= 3); // false
console.log(3 >= undefined); // false
console.log(3 >= NaN); // false
console.log(NaN >= 3); // false
Spécifications
| Specification |
|---|
| ECMAScript® 2026 Language Specification # sec-relational-operators |
Compatibilité des navigateurs
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