MQL5Book/Web/wsecho_client.js

42 lines
1.3 KiB
JavaScript
Raw Permalink Normal View History

2025-05-30 16:09:41 +02:00
//+------------------------------------------------------------------+
//| wsecho_client.js |
//| Copyright 2022, MetaQuotes Ltd. |
//| https://www.mql5.com |
//+------------------------------------------------------------------+
const proto = window.location.protocol.startsWith('http') ?
window.location.protocol.replace('http', 'ws') : 'ws:';
const ws = new WebSocket(proto + '//' + window.location.hostname + ':9000');
ws.onopen = function()
{
console.log('Connected');
};
ws.onmessage = function(message)
{
console.log('Message: %s', message.data);
document.getElementById('echo').value = message.data;
};
const button = document.querySelectorAll('button'); // get all button-tags
// submit button
button[0].addEventListener('click', (event) =>
{
const x = document.getElementById('message').value;
if(x) ws.send(x);
});
// close button
button[1].addEventListener('click', (event) =>
{
ws.close();
document.getElementById('echo').value = 'disconnected';
Array.from(document.getElementsByTagName('button')).forEach((e) =>
{
e.disabled = true;
});
});
//+------------------------------------------------------------------+