function wrapper( N, dtypeX, x, strideX ) {
	addon( N, str2enum( dtypeX ), x, strideX );
	return x;
}
Wrapper function exposing the C API to JavaScript.

@private
@param {integer} N - number of indexed elements
@param {string} dtypeX - `x` data type
@param {Float64Array} x - destination array
@param {integer} strideX - `x` stride length
@returns {Float64Array} `x`

@example
var Float64Array = require( '@stdlib/array/float64' );

var x = new Float64Array( 10 );

wrapper( x.length, 'float64', x, 1 );