es6 forEach
const array1 = ['a', 'b', 'c'];
array1.forEach((element) => {
console.log(element)
});
// expected output: "a"
// expected output: "b"
// expected output: "c"es6 forEach
const array1 = ['a', 'b', 'c'];
array1.forEach((element) => {
console.log(element)
});
// expected output: "a"
// expected output: "b"
// expected output: "c"foreach javascript
var items = ["item1", "item2", "item3"]
var copie = [];
items.forEach(function(item){
copie.push(item);
});javascript .foreach
let colors = ['red', 'blue', 'green'];
// idx and sourceArr optional; sourceArr == colors
colors.forEach(function(color, idx, sourceArr) {
console.log(color, idx, sourceArr)
});
// Output:
// red 0 ['red', 'blue', 'green']
// blue 1 ['red', 'blue', 'green']
// green 2 ['red', 'blue', 'green']forEach
const arraySparse = [1,3,,7]
let numCallbackRuns = 0
arraySparse.forEach((element) => {
console.log(element)
numCallbackRuns++
})
console.log("numCallbackRuns: ", numCallbackRuns)
// 1
// 3
// 7
// numCallbackRuns: 3
// comment: as you can see the missing value between 3 and 7 didn't invoke callback function.for each javascript
const movies = [
{name: "A New Hope", director: "George Lucas", release: "1977-05-25", episodeID: 4},
{name: "Attack of the Clones", director: "George Lucas", release: "2002-05-16", episodeID: 2},
{name: "Return of the Jedi", director: "Richard Marquand", release: "1983-05-25", episodeID: 6},
{name: "Revenge of the Sith", director: "George Lucas", release: "2005-05-19", episodeID: 3},
{name: "The Empire Strikes Back", director: "Irvin Kershner", release: "1980-05-17", episodeID: 5},
{name: "The Phantom Menace", director: "George Lucas", release: "1999-05-19", episodeID: 1}
]
movies.forEach((movies) => {
console.log(movies.name);
});
/*A New Hope
Attack of the Clones
Return of the Jedi
Revenge of the Sith
The Empire Strikes Back
The Phantom Menace*/boucle foreach js
let listeDePays = ['France', 'Belgique', 'Japon', 'Maroc'];
listeDePays.forEach(pays => console.log(pays));Copyright © 2021 Codeinu
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