Answers for "javascript loop through array"

30

javascript loop through array

var data = [1, 2, 3, 4, 5, 6];

// traditional for loop
for(let i=0; i<=data.length; i++) {
  console.log(data[i])  // 1 2 3 4 5 6
}

// using for...of
for(let i of data) {
	console.log(i) // 1 2 3 4 5 6
}

// using for...in
for(let i in data) {
  	console.log(i) // Prints indices for array elements
	console.log(data[i]) // 1 2 3 4 5 6
}

// using forEach
data.forEach((i) => {
  console.log(i) // 1 2 3 4 5 6
})
// NOTE ->  forEach method is about 95% slower than the traditional for loop

// using map
data.map((i) => {
  console.log(i) // 1 2 3 4 5 6
})
Posted by: Guest on December-18-2020
45

javascript loop through array

var colors = ["red","blue","green"];
for (var i = 0; i < colors.length; i++) {
    console.log(colors[i]);
}
Posted by: Guest on July-22-2019
14

javascript loop through array

var colors = ["red","blue","green"];
colors.forEach(function(color) {
  console.log(color);
});
Posted by: Guest on March-06-2020
7

javascript loop through array

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

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

//or

for(let i = 0; i < myArray.length; i++) {
  console.log(myArray[i]);
}
Posted by: Guest on November-16-2020
12

javascript loop through array

var myStringArray = ["hey","World"];
var arrayLength = myStringArray.length;
for (var i = 0; i < arrayLength; i++) {
    console.log(myStringArray[i]);
    //Do something
}
Posted by: Guest on September-05-2019
4

javascript loop through array

const numbers = [1, 2, 3, 4]
numbers.forEach(number => {
	console.log(number);
}

for (let i = 0; i < number.length; i++) {
	console.log(numbers[i]);
}
Posted by: Guest on September-30-2020
7

javascript loop through array

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

for (let item of array) {
  console.log(item);
}
Posted by: Guest on June-01-2020
1

javascript loop through array

let my_array = [1, 2, 3, 4, 5];

// standard for loop
for(let i = 0; i < my_array.length; i++) {
  console.log(my_array[i])  // 1 2 3 4 5 6
}

// for and of method
for(let i of my_array) {
	console.log(i)
}

/*
Results:
1 2 3 4 5
1 2 3 4 5
(From both methods)
*/
Posted by: Guest on December-31-2020
23

javascript loop through array

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

array1.forEach(element => console.log(element));
Posted by: Guest on January-10-2020
2

javascript loop through array

var numbers = [1, 2, 3, 4, 5];
numbers.forEach((Element) => console.log(Element));
Posted by: Guest on October-01-2020

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