JS Array Iteration 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: javascript iterate array

var txt = "";
var numbers = [45, 4, 9, 16, 25];

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

Example 3: iterate array javascript

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

Example 4: javascript loop through array

const array1 = ['a', 'b', 'c'];

array1.forEach(element => console.log(element));

Example 5: how to iterate array in javascript

array = [ 1, 2, 3, 4, 5, 6 ]; 
   //set variable//set the stop count // increment each loop
for (let i = 0; i < array.length ;i++) { 
  
         array[i] //iterate through each index.
   //add the intructions you would like to perform.
    
             // add any method to array[
}