socket.io对象没有方法“发出”

Question

I am getting this error message

TypeError: Object [object Object] has no method 'emit'

when trying to access a socket in helpQue , which is constructed with helpQue.push(socket) .

Both helpQue and cxsQue are arrays of sockets.

setInterval(function() {
    if(helpQue.length > 0 && cxsQue.length > 0) {
        var id = makeid(),
            helpee = helpQue.splice(0, 1);

            helpee.emit('server-output', 'Test'); //ERROR here
    }
}, 1000);

Answer 1

I switched the code to

setInterval(function() {
    if(helpQue.length > 0 && cxsQue.length > 0) {
        var id = makeid(),
            helpee = helpQue[0];
            helpQue.splice(0, 1);

            helpee.emit('server-output', 'Test');
    }
}, 1000);

it worked. I assume there was something going on with splice , but can't figure out what. If anyone knows please let me know.