Syntax

Thread.join-return

This JSON is the data structure returned by the join() member function of the Thread object, used to store information related to concurrent threads in JavaScript language strategies. The Thread object refers to a thread object created via threading.Thread().

Attributes

Name	Type	Description
id	number	Thread ID.
terminated	bool	Whether the thread was forcibly terminated.
elapsed	number	Thread execution time (nanoseconds).
error	string	Error message when the thread fails (throws an exception); `null` when there is no error.
ret	any	Return value of the thread function, which can be of any type; `undefined` when the thread function returns nothing.

See Also

join

Remarks

join(timeout) returns undefined (not null) when the thread has not finished within the timeout; you can call join() again later to keep waiting. The following code tests the timeout mechanism of the join() function of the Thread object and prints the return value of the join() function.


            javascript
            
            
function testFunc() {
    for (var i = 0; i < 5; i++) {
        Log(i)
        Sleep(300)
    }
}

function main() {
    var t1 = threading.Thread(testFunc)
    Log(t1.join(1000))  // undefined
    Log(t1.join())      // {"id":1,"terminated":false,"elapsed":1506864000,"error":null}
}