This is the code I am trying to use to create a function to increase/ decrease text size on my page: this is the error i get: "main.js (65,19) Syntax error"

function changeFontsize(type)
{
    let ids = ["#h3", "#p" ];
    
    ids.forEach( id => {
        
        let el = document.querySelector(id);
        
        
        let fontSize = window.getComputedStyle(el, null).getPropertyValue("font-size");
        
        
        fontSize = parseFloat.(fontSize);
        
        
        if(type === "increase")
        {
            el.style.fontSize = (fontSize + 5) + "px" ;
            
        }
        else 
        {
           el.style.fontSize = (fontSize - 5) +"px";    
        
        }
        
        
        
    });
}