# isBufferLengthCompatibleShape > Determine if a buffer length is compatible with an array shape.
## Usage ```javascript var isBufferLengthCompatibleShape = require( '@stdlib/ndarray/base/assert/is-buffer-length-compatible-shape' ); ``` #### isBufferLengthCompatibleShape( len, shape ) Returns a `boolean` indicating if a buffer `length` is compatible with a provided `shape` array. ```javascript var shape = [ 2, 2 ]; var bool = isBufferLengthCompatibleShape( 10, shape ); // returns true bool = isBufferLengthCompatibleShape( 3, shape ); // returns false ```
## Examples ```javascript var discreteUniform = require( '@stdlib/random/base/discrete-uniform' ); var isBufferLengthCompatibleShape = require( '@stdlib/ndarray/base/assert/is-buffer-length-compatible-shape' ); var shape; var bool; var len; var i; len = 500; // buffer length shape = [ 0, 0, 0 ]; for ( i = 0; i < 100; i++ ) { // Generate a random array shape: shape[ 0 ] = discreteUniform( 1, 10 ); shape[ 1 ] = discreteUniform( 1, 10 ); shape[ 2 ] = discreteUniform( 1, 10 ); // Determine if the buffer length is compatible with the shape array: bool = isBufferLengthCompatibleShape( len, shape ); console.log( 'Buffer length: %d. Shape: %s. Compatible: %s.', len, shape.join( 'x' ), bool ); } ```