JAVASCRIPT

forach loop in javascript

 var arr = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10]; 
arr.forEach(function(element){
     console.log(element);
 })

foreach javascript

let words = ['one', 'two', 'three', 'four'];
words.forEach((word) => {
  console.log(word);
});
// one
// two
// three
// four

foreach javascript

var items = ["item1", "item2", "item3"]
var copie = [];

items.forEach(function(item){
  copie.push(item);
});

foreach loop javascript

const numList = [1, 2, 3];

numList.forEach((number) => {
  console.log(number);
});

foreach in javascript

const avengers = ['IronMan','thor', 'captain america', 'hulk'];
avengers.forEach((item, index)=>{
	console.log(index, item)
})

how to use foreach in javascript

var array = ["a","b","c"];
// example 1
  for(var value of array){
    console.log(value);
    value += 1;
  }

// example 2
  array.forEach((item, index)=>{
    console.log(index, item)
  })

foreach javascript

let names = ['josh', 'joe', 'ben', 'dylan'];
// index and sourceArr are optional, sourceArr == ['josh', 'joe', 'ben', 'dylan']
names.forEach((name, index, sourceArr) => {
	console.log(color, idx, sourceArr)
});

// josh 0 ['josh', 'joe', 'ben', 'dylan']
// joe 1 ['josh', 'joe', 'ben', 'dylan']
// ben 2 ['josh', 'joe', 'ben', 'dylan']
// dylan 3 ['josh', 'joe', 'ben', 'dylan']

javascript foreach loop

const array = ['Element_1', 'Element_2', 'Element_3']
array.forEach((currentElement, currentElementIndex, arrayOfCurrentElement) => {
  console.log(currentElement, currentElementIndex, arrayOfCurrentElement)
})

foreach javascript

const dogs = [
 'Husky','Black Lab',
 'Australian Shepard',
 'Golden Retriever', 
 'Syberian Husky', 
 'German Shepard' 
]

dogs.forEach(function(dog) {
	console.log(dog); 
});

forEach method Javascript

var counter = new Counter();
var numbers = [1, 2, 3];
var sum = 0;
numbers.forEach(function (e) {
    sum += e;
    this.increase();
}, counter);

console.log(sum); // 6
console.log(counter.current()); // 3
Code language: JavaScript (javascript)

.forEach in Javascript

// Arrow function
forEach((element) => { ... } )
forEach((element, index) => { ... } )
forEach((element, index, array) => { ... } )

// Callback function
forEach(callbackFn)
forEach(callbackFn, thisArg)

// Inline callback function
forEach(function callbackFn(element) { ... })
forEach(function callbackFn(element, index) { ... })
forEach(function callbackFn(element, index, array){ ... })
forEach(function callbackFn(element, index, array) { ... }, thisArg)

foreach javascript

const names=["shirshak", "John","Amelia"]
//forEach is only for array and slower then for loop and for of loop 
//forEach we get function which cannot be break and continue as it is not inside 
//switch or loop.
names.forEach((name,index)=> {
console.log(name,index)//
})

foeach in js

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 loop javascript

listName.forEach((listItem) => {
  Logger.log(listItem);
}):

foreach javascript

let colors = ['red', 'blue', 'green'];
// idx and sourceArr optional; sourceArr == colors
colors.forEach(function(color, idx, sourceArr) {
	console.log(color, idx, sourceArr)
});

how to use the foreach method in javascript

groceries.forEach(groceryItem => console.log(groceryItem));

.forEach in Javascript

Array.prototype.forEach.call(node.childNodes, (child) => {
    // Do something with `child`
});

for each loop in javascript

array.forEach(element => {
  // syntex
});

foreach javascript

Used to execute the same code on every element in an array
Does not change the array
Returns undefined

foreach in javascript

<p>forEach() calls a function for each element in an array:</p>

<p>Multiply the value of each element with 10:</p>

<p id="demo"></p>

<script>
const numbers = [65, 44, 12, 4];
numbers.forEach(myFunction)

document.getElementById("demo").innerHTML = numbers;

function myFunction(item, index, arr) {
  arr[index] = item * 10;
}
</script>

forEach() calls a function for each element in an array:

Multiply the value of each element with 10:

650,440,120,40