# isArrayArray > Test if a value is an array of arrays.
## Usage ```javascript var isArrayArray = require( '@stdlib/assert/is-array-array' ); ``` #### isArrayArray( value ) Tests if a `value` is an `array` of `arrays`. ```javascript var bool = isArrayArray( [ [], [] ] ); // returns true bool = isArrayArray( [ {}, {} ] ); // returns false bool = isArrayArray( [] ); // returns false bool = isArrayArray( {} ); // returns false bool = isArrayArray( [ null, {} ] ); // returns false ```
## Examples ```javascript var isArrayArray = require( '@stdlib/assert/is-array-array' ); var bool = isArrayArray( [ [], [], [] ] ); // returns true bool = isArrayArray( [ [], {} ] ); // returns false bool = isArrayArray( [] ); // returns false bool = isArrayArray( {} ); // returns false bool = isArrayArray( [ 'a', 'b' ] ); // returns false bool = isArrayArray( null ); // returns false ```