# addAll method

StreamBuilder<T> addAll(

1. Iterable<T> elements

)

Adds all elements from the given iterable to the stream being built.

Throws NoGuaranteeException if the builder has already been built.

## Example

    builder.addAll(['Hello', 'World', '!']);

## Implementation

    StreamBuilder<T> addAll(Iterable<T> elements) {
      if (_built) {
        throw NoGuaranteeException('StreamBuilder has already been built');
      }
      _elements.addAll(elements);
      return this;
    }