//

[BalajiVeera]

Try with asynchronous client-side geometry engine

geometryEngineAsync.intersect(line1, line2).then(
    function (resint){
       console.log(resint);
    }
 );          

[ReneRubalcava]

I think, if I can remember correctly, the output geometry type would be the same as the input type. So a line would need to sit directly on another line and you would get that intersect back. I don't think it would return a point where two lines intersect.