JSFiddle - React, Tailwind, and code Playground

JavaScript

function viewReport(mode,someid){
    if(mode==0){
        var para = {
            para1: 'para1' || 0,
            para2: 'para2' || 0
        }
        alert('somePDFView/'+jQuery.param(para)); 
    }else{
        var para =  {
            para1:'anotherpara1'||0,
            para2:'anotherpara2'||0
        };
    
        alert('somePDFView/'+jQuery.param(para)); 
    }
}

viewReport(1, 1);