R: Get Next Element of Iterator

nextElem {iterators} | R Documentation

## Get Next Element of Iterator

### Description

`nextElem` is a generic function used to produce values. If a `checkFunc` was specified to the constructor, the potential iterated values will be passed to the `checkFunc` until the `checkFunc` returns `TRUE`. When the iterator has no more values, it calls stop with the message 'StopIteration'.

### Usage

    nextElem(obj, ...)

    ## S3 method for class 'containeriter'
    nextElem(obj, ...)
    ## S3 method for class 'funiter'
    nextElem(obj, ...)

### Arguments

`obj` | an iterator object.
`...` | additional arguments that are ignored.

### Value

The value.

### Examples

      it <- iter(c('a', 'b', 'c'))
      print(nextElem(it))
      print(nextElem(it))
      print(nextElem(it))

[Package iterators version 1.0.10 Index]