Rumah > Soal Jawab > teks badan
伊谢尔伦2017-04-17 14:57:30
当然咯,因为你并发量是5,但是你的queue中并没有fork callback
,所以并发量是5,没有结束也不会调新的咯。
var async = require('async');
var q = async.queue(function(data, callback) {
console.log(data.name);
// fork callback
callback();
}, 5);
for(var i = 0; i < 10; ++i) {
q.push({ name: 0 })
}
高洛峰2017-04-17 14:57:30
var q = async.queue(function (data, callback) {
console.log(data.name);
callback(null)
},5)
少了callback
An asynchronous function for processing a queued task, which must call its callback(err) argument when finished, with an optional error as an argument. If you want to handle errors from an inpidual task, pass a callback to q.push(). Invoked with (task, callback).