# Loops

Looping in Midio is as simple as connecting nodes in a loop. This can however easily create infinite loops if we don’t branch out of the loop at some point. 

There are two main helper functions in Midio that makes it easy to prevent infinite loops:

* [`For`](/midio-docs/built-in-nodes/core-std.md#for) - used to loop a given number of times
* [`For Each`](/midio-docs/built-in-nodes/core-std.md#foreach) - used to loop once per item in a list

## For

<figure><img src="/files/uRe523kDcWTZTUiDRQIb" alt=""><figcaption></figcaption></figure>

The [`For`](/midio-docs/built-in-nodes/core-std.md#for) node allows you to repeat a sequence of nodes a set number of times, determined by the `iterations` input.

1. **Start the loop** by triggering the `reset` input.
2. [`For`](/midio-docs/built-in-nodes/core-std.md#for) will then activate the `on count` output trigger **once per iteration**, up to the specified number of times.
3. To continue looping, connect `on count` to the next node(s) in your sequence, and then back to the `count` input of [`For`](/midio-docs/built-in-nodes/core-std.md#for). This advances to the next iteration.
4. Once all iterations are complete, the `done` output trigger is activated.

## For Each

<figure><img src="/files/VLW3re1CjQcZC5iFP2ER" alt=""><figcaption></figcaption></figure>

The [`For Each`](/midio-docs/built-in-nodes/core-std.md#foreach) node allows you to loop through a list of items, executing a sequence of actions for each item in the list. Unlike a standard [`For`](/midio-docs/built-in-nodes/core-std.md#for)  loop that runs a fixed number of times, [`For Each`](/midio-docs/built-in-nodes/core-std.md#foreach) automatically iterates over every element in a list, passing along both the `current item` and its `index` in the list.

1. **Trigger the loop** by activating the `reset` input.
2. For each item in the list, [`For Each`](/midio-docs/built-in-nodes/core-std.md#foreach) activates the `on item` output trigger.
3. The `item` **output** provides the value of the current element, while the `index` **output** gives its position in the list.
4. Once all items have been processed, the **done** output trigger is activated.


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