connect
event is fired in shared workers at their
SharedWorkerGlobalScope
when a new client connects.
| 冒泡 | No |
|---|---|
| 可取消 | No |
| 接口 |
MessageEvent
|
| 事件处理程序特性 |
SharedWorkerGlobalScope.onconnect
|
This example shows a shared worker file — when a connection to the worker occurs from a main thread via a
MessagePort
，
onconnect
event handler fires. The event object is a
MessageEvent
.
The connecting port can be referenced through the event object's
ports
parameter; this reference can have an
onmessage
handler attached to it to handle messages coming in through the port, and its
postMessage()
method can be used to send messages back to the main thread using the worker.
self.onconnect = function(e) {
var port = e.ports[0];
port.onmessage = function(e) {
var workerResult = 'Result: ' + (e.data[0] * e.data[1]);
port.postMessage(workerResult);
}
port.start();
}
For a complete running example, see our Basic shared worker example ( run shared worker )。
You could also set up an event handler using the
addEventListener()
方法：
self.addEventListener('connect', function(e) {
var port = e.ports[0];
port.onmessage = function(e) {
var workerResult = 'Result: ' + (e.data[0] * e.data[1]);
port.postMessage(workerResult);
}
});
| 规范 | 状态 |
|---|---|
|
HTML 实时标准
The definition of 'connect event' in that specification. |
实时标准 |
| 桌面 | 移动 | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
connect
event
|
Chrome 4 | Edge ≤79 |
Firefox
29
|
IE No | Opera 10.6 | Safari No | WebView Android Yes | Chrome Android 18 |
Firefox Android
29
|
Opera Android Yes | Safari iOS ? | Samsung Internet Android 1.0 |
完整支持
不支持
兼容性未知
见实现注意事项。
SharedWorkerGlobalScope
connect