Baseline Widely available
L'opérateur d'addition (+) produit la somme de deux opérandes numériques ou la concaténation de deux chaînes de caractères.
console.log(2 + 2);
// Expected output: 4
console.log(2 + true);
// Expected output: 3
console.log("hello " + "everyone");
// Expected output: "hello everyone"
console.log(2001 + ": A Space Odyssey");
// Expected output: "2001: A Space Odyssey"
// Number + Number -> addition
1 + 2; // 3
// Boolean + Number -> addition
true + 1; // 2
// Boolean + Boolean -> addition
false + false; // 0
// String + String -> concatenation
"toto" + "truc"; // "tototruc"
// Number + String -> concatenation
5 + "toto"; // "5toto"
// String + Boolean -> concatenation
"toto" + false; // "totofalse"
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