create multy dimensional array progamaticly

multidimentional-array.js

pNation();
        function pNation(){
            var pn1 = [];
            var pn2 = [];
            var isi = 4;
            for(i = 1;i<=stl.page.length;i++){
                pn1.push(i);
                if(i%isi == 0){
                    pn2.push(pn1);
                    pn1 = [];
                }
                
            }
            pn2.push(pn1);
            console.log(pn2)
        }