for elements in array javascript code example

Example 1: loop through an array javascript

let array = ['Item 1', 'Item 2', 'Item 3'];

// Here's 4 different ways
for (let index = 0; index < array.length; index++) {
  console.log(array[index]);
}

for (let index in array) {
  console.log(array[index]);
}

for (let value of array) {
  console.log(value); // Will log value in array
}

array.forEach((value, index) => {
  console.log(index); // Will log each index
  console.log(value); // Will log each value
});

Example 2: iterate array javascript

array = [ 1, 2, 3, 4, 5, 6 ]; 
for (index = 0; index < array.length; index++) { 
    console.log(array[index]); 
}

Example 3: for array javascript

let iterable = [10, 20, 30];

for (let value of iterable) {
  value += 1;
  console.log(value);
}
// 11
// 21
// 31

Example 4: js fetch all elements of an array

let elements = ['A', 'B', 'C', 'D', 'E'];
elements.forEach(letter => console.log(letter.toLowerCase())); //a, b, c, d, e

Example 5: javascript loop through array

const myArray = ["foo","bar"];

// New version

myArray.map(item => console.log(item));

//or

myArray.forEach(item => console.log(x));

//Older version

for(let i = 0; i < myArray.length; i++) {
  console.log(myArray[i]);
}