curve_app/html/java/main.js

// main
document.addEventListener("DOMContentLoaded", function(event) { 

    let conn = new Conn(addr, {
        incoming: function(mes) {
            let data = mes.data()
            console.log('incoming', data)
        },
        connected: function() {
            console.log('connected')
            // interface can be enabled
            conn.sendMessage({
                'command': 'method',
                'random_num': "1000000",
            }, function(rData) {
                console.log('method', rData)
            })
        }
    })



    /*
    let api = new API(addr)

    api.curveInit(
        "2",
        "4",
        "10000",
        function(data) {
            console.log('curve-init', data)
        }
    )

    api.curves()
    */

    window.onbeforeunload = function(e) {
        var message = "Закрыть программу?";
	    if (typeof e == "undefined") {
		    e = window.event;
	    }
	    if (e) {
		    e.returnValue = message;
	    }
	    return message;
    }
});