after each timeline interaction, you need to stop the previous websocket connection to prevent the displayed query data from being instantly updated by the new data pushed back, so call the ws.close () method to close the websocket push every time you click the time query button. However, the close method does not take effect
the close method of Websocket must be registered before it can take effect.
var ws = new WebSocket(url);
ws.onopen = function() {
ws.send(JSON.stringify(param));
}
ws.onmessage = callback
//closeclose
ws.onclose = function() {}Previous: Whether viser multiple line charts can modify tooltip text through the alias attribute
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