js traverse array code example

Example 1: javascript iterate array

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 each value
}

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

Example 2: traverse an array in javascript

//Method 1 using for loop

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

//Method 2 using for Of loop

for (let traverse of array ){
  console.log(traverse)
}

Example 3: iterate over array javascript

var txt = "";
var numbers = [45, 4, 9, 16, 25];
numbers.forEach(myFunction);

function myFunction(value, index, array) {
  txt = txt + value + "<br>";
}