function getInt8( arr, idx ) { // eslint-disable-line stdlib/jsdoc-doctest-decimal-point
	return arr[ idx ];
}
Returns an element from an `Int8Array`.

@private
@param {Int8Array} arr - input array
@param {NonNegativeInteger} idx - element index
@returns {number} element value

@example
var Int8Array = require( '@stdlib/array/int8' );

var arr = new Int8Array( [ 1, 2, 3, 4 ] );

var v = getInt8( arr, 2 );
// returns 3