# Overview

In Dart, the **`in` keyword** is used in the `for-in` loop.   When we iterate through an iterable, such as a list or a set, the `for-in` loop comes in handy.

## Syntax
```
for (variablename in iterable){  
   // some code to execute  
}
```
## Code

The following code shows how to use the `in` keyword in Dart.

void main() { 
  // create list
   var lang = ['D','a','r','t']; 
   // iterate through the list
   // using for-in loop
   for (var x in lang) { 
      print(lang); 
   } 
}

## Explanation

- Lines 1–9: We create the `main()` function.
- Line 3: In `main()`, we declare a list called `lang`.
- Lines 6–8: We use the `for-in` loop to iterate through the list `lang` and display the items in the list.


How to use the in keyword in Dart

Use the for-in loop in Dart to iterate through iterables like lists or sets for efficient element access.