for of js
let obj = {
key1: "value1",
key2: "value2",
key3: "value3"
}
Object.keys(obj).forEach(key => {
console.log(key, obj[key]);
});
// key1 value1
// key2 value2
// key3 value3
// using for in - same output as above
for (let key in obj) {
let value = obj[key];
console.log(key, value);
}let list = [4, 5, 6];
for (let i in list) {
console.log(i); // "0", "1", "2",
}
for (let i of list) {
console.log(i); // "4", "5", "6"
}let panier = ['fraise', 'banane', 'poire'];
for (const fruit of panier) {
// console.log(fruit);
console.log(panier.indexOf(fruit));
}const array = ['hello', 'world', 'of', 'Corona'];
for (const item of array) {
console.log(item);
}(function() {
for (const argument of arguments) {
console.log(argument);
}
})(1, 2, 3);
// 1
// 2
// 3const array = [1, 2, 3];array.forEach(function(elem, index, array) { array[index] = elem * 2;});console.log(array); // [2,4,6]