docs: add example

Author: kgryte

lib/node_modules/@stdlib/array/base/with/docs/types/index.d.ts

@@ -230,6 +230,18 @@ interface ArrayWith {
 *
 * var out = arrayWith( x, 1, 8 );
 * // returns [ 1, 8, 3, 4, 5, 6 ]
+*
+* @example
+* var Float64Array = require( '@stdlib/array/float64' );
+*
+* var x = [ 1, 2, 3, 4 ];
+*
+* var out = new Float64Array( [ 0, 0, 0, 0 ] );
+* var arr = arrayWith.assign( x, 0, 5, out, 1, 0 );
+* // returns <Float64Array>[ 5, 2, 3, 4 ]
+*
+* var bool = ( arr === out );
+* // returns true
 */
 declare var arrayWith: ArrayWith;