# iterConcat
> Create an [iterator][mdn-iterator-protocol] which iterates over the values of two or more [iterators][mdn-iterator-protocol].
## Usage
```javascript
var iterConcat = require( '@stdlib/iter/concat' );
```
#### iterConcat( iter0, ...iterator )
Returns an [iterator][mdn-iterator-protocol] which iterates over the values of two or more [iterators][mdn-iterator-protocol].
```javascript
var array2iterator = require( '@stdlib/array/to-iterator' );
var it1 = array2iterator( [ 1, 2 ] );
var it2 = array2iterator( [ 3, 4 ] );
var it = iterConcat( it1, it2 );
// returns
## Notes
- If an environment supports `Symbol.iterator` **and** provided [iterators][mdn-iterator-protocol] are iterable, the returned [iterator][mdn-iterator-protocol] is iterable.
## Examples
```javascript
var randu = require( '@stdlib/random/iter/randu' );
var randn = require( '@stdlib/random/iter/randn' );
var iterConcat = require( '@stdlib/iter/concat' );
// Create a seeded iterator for generating uniformly distributed pseudorandom numbers:
var runif = randu({
'seed': 1234,
'iter': 10
});
// Create a seeded iterator for generating normally distributed pseudorandom numbers:
var rnorm = randn({
'seed': 1234,
'iter': 10
});
// Create an iterator which concatenates iterators:
var it = iterConcat( runif, rnorm );
// Perform manual iteration...
var v;
while ( true ) {
v = it.next();
if ( v.done ) {
break;
}
console.log( v.value );
}
```
[mdn-iterator-protocol]: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Iteration_protocols#The_iterator_protocol