# for statement

The `for` construct sets a loop: a code placed inside it will be repeated a given number of times.

## Syntax

`for (initial commands; loop termination condition; commands after loop iteration) { loop body };`

## Example

Let's output a sequence of numbers from `0` to `10`:

`for (let i = 0; i <= 10; i++) { console.log(i); }`

## Example

Let's output a sequence of numbers from `10` to `0`:

`for (let i = 10; i >= 0; i--) { console.log(i); }`

## Example

Let's output even numbers from `0` to `10`:

`for (let i = 2; i <= 10; i += 2) { console.log(i); }`

## Example

Let's output array elements:

`let arr = ['a', 'b', 'c', 'd', 'e']; for (let i = 0; i < arr.length; i++) { console.log(arr[i]); }`

## Example

The initial commands and commands after loop iteration may consist of not one, but several commands separated by commas. For example, let's make two counters: let the first one increase by one each loop iteration, and the second one - by two:

`for (let i = 0, j = 0; i <= 9; i++, j += 2) { console.log(i, j); }`

## See also

- the lesson from JavaScript tutorial
  detailing how to work with the `for` loop
- the `for-of` statement
  that creates a loop to iterate over an array
- the `for-in` statement
  that creates a loop to iterate over an object
- the `while` statement
  that also creates a loop
- the `break` statement
  that breaks a loop
- the `continue` statement
  that moves a loop to next iteration

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