Web workers
Client
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| var worker = new Worker('worker.js')
worker.onmessage = function (message) {
alert(JSON.stringify(message.data))
})
worker.postMessage('hello!')
|
Messages can be anything that can be serialized into JSON (objects, arrays, strings, numbers, booleans). See: structured clone
Worker
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| self.onmessage = function (message) {
···
}
self.postMessage({ msg: 'hello' })
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Message data
[MessageEvent]
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| bubbles: false
cancelBubble: false
cancelable: false
clipboardData: undefined
currentTarget: Worker
data: "Hello" ← the data
defaultPrevented: false
eventPhase: 0
lastEventId: ""
origin: ""
ports: Array[0]
returnValue: true
source: null
srcElement: Worker
target: Worker
timeStamp: 1344821022383
type: "message"
|
These are the contents of message on onmessage.