for element of 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: javascript object array iteration

let obj = {
  key1: "value1",
  key2: "value2",
  key3: "value3"
}

Object.keys(obj).forEach(key => {
  let value = obj[key];
  //use key and value here
});

Example 3: for of array javascript

let colors = ['red', 'green', 'blue'];
for (const color of colors){
    console.log(color);
}

Example 4: iterate array in javascrpt

let array = [ 1, 2, 3, 4 ]; //Your array

for( let element of array ) {
	//Now element takes the value of each of the elements of the array
	//Do your stuff, for example...
  	console.log(element);
}