# Class Iterator<T>

**Module:** `require("engine")`

An iterator that is used by the seek() function from the Repository class. This iterator can be used to iterate through set of values, one at a time, by some prefix.

**See also:** [Repository<T>](Repository_T_)

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## Member Functions

List of **member** functions within the table `Iterator<T>`.
These functions need to be called using the colon symbol on some instance of `Iterator<T>`.

### next()

Retrieves the next value

**Returns:** `bool` - True if there is some value to read or false if this is end of the seek

```{warning}
This function must be called first before trying to read the value or the key.
```

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## Fields

List of fields within the table `Iterator<T>`.
These variables belong to this class and can be accessed only via an instance of this class.

### value

The current value that the iterator points to. You must first call next() before using this field, otherwise this raises an error.

**Read-only!**

**Type:** `T`

### value

The current key that the iterator points to. You must first call next() before using this field, otherwise this raises an error.

**Read-only!**

**Type:** `string`