JSFiddle - React, Tailwind, and code Playground

JavaScript

function equal(n1,n2){
    var bool = (n1^n2) >= 0?true:false;
    document.write("<div>"+bool+" ("+(n1^n2)+")</div>");
}
 

equal(-5,-2); //true
equal(-4,-20);//true
equal(15,-2); //false
equal(25,3); //true 

document.write("<br>"); 

equal(-1,1); //false
equal(1,1);  //true
equal(-1,-1);//true

document.write("<br>");

// edgecases
equal(0,0);
equal(-0,0);
equal(+0,0);
equal(-0,+0);
equal(+0,-0);