javascript 如何关闭服务器发送的事件事件
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How to close Server-Sent Events events
提问by ahhmarr
I want to know how to close a server-sent events via JavaScript. Below is my dummy code:
我想知道如何通过 JavaScript 关闭服务器发送的事件。下面是我的虚拟代码：
var ser=new EventSource("path");
ser.onmessage=function(ev){
if(!ev)
//want to close HERE!!
else
console.log(ev);
}
回答by David Robinson Jr.
Here is the way that I found worked best for me
这是我发现最适合我的方式
var eventSource = new EventSource("path");
eventSource.onerror = eventSourceErrorFunction;
var eventSourceErrorFunction = function(event)
{
if (event.eventPhase == EventSource.CLOSED) {
that.eventSource.close();
console.log("Event Source Closed");
}
}
回答by Ian
The correct way to close a server side event is with the closemethod.
关闭服务器端事件的正确方法是使用close方法。
https://developer.mozilla.org/en-US/docs/Server-sent_events/EventSource#Method_overview
https://developer.mozilla.org/en-US/docs/Server-sent_events/EventSource#Method_overview
So you'd use:
所以你会使用：
var ser = new EventSource("path");
ser.onmessage = function (ev) {
if (!ev)
ser.close();
else
console.log(ev);
};
JavaScript is case sensitive, so you can't use .Close(), as it's a different thing than .close()and will be undefined in this case.
JavaScript 区分大小写，因此您不能使用.Close()，因为它.close()与这种情况不同，并且在这种情况下将是未定义的。
