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Showing content from https://developer.mozilla.org/fr/docs/Web/JavaScript/Reference/Global_Objects/TypedArray/entries below:

TypedArray.prototype.entries() - JavaScript | MDN

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La méthode entries() renvoie un nouvel objet Array Iterator qui contient les paires clé/valeur pour chaque indice du tableau.

const uint8 = new Uint8Array([10, 20, 30, 40, 50]);
const eArr = uint8.entries();

eArr.next();
eArr.next();

console.log(eArr.next().value);
// Expected output: Array [2, 30]

Un nouvel objet Array Iterator.

var arr = new Uint8Array([10, 20, 30, 40, 50]);
var eArray = arr.entries();
// prérequis nécessaire : le navigateur doit
// supporter les boucles for..of
// et les variables dont la portée est définie par let
for (let n of eArray) {
  console.log(n);
}

var arr = new Uint8Array([10, 20, 30, 40, 50]);
var eArr = arr.entries();
console.log(eArr.next().value); // [0, 10]
console.log(eArr.next().value); // [1, 20]
console.log(eArr.next().value); // [2, 30]
console.log(eArr.next().value); // [3, 40]
console.log(eArr.next().value); // [4, 50]

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