Node.js 之async.js 裡waterfall模塊樣例

Node.js 之async.js 裡waterfall模塊樣例

/**
* Created with JetBrains WebStorm.
* User: hexie
* Date: 12-12-6
* Time: 上午9:58
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*/

var async = require('async');

async.waterfall([
function(callback){
callback(null, 'one', 'two');
console.log('1');
},
function(arg1, arg2, callback){
callback(null, 'three');
console.log(arg1);
console.log(arg2);
},
function(arg1, callback){
// arg1 now equals 'three'
callback(null, 'done');
console.log(arg1);
}
], function (err, result) {
console.log(result);
// result now equals 'done'
// console.log('4');
});