在迭代承诺时有点迷失,我试图改变这个:
[{
' site' : ['url', 'url', 'url']
},
{
' site' : ['url', 'url', 'url']
}]
这样就变成了:
[{
'site' : [{ 'url' : result_of_function }, { 'url' : result_of_function }, { 'url' : result_of_function }]
},
{
'site' : [{ 'url' : result_of_function }, { 'url' : result_of_function }, { 'url' : result_of_function }]
}]
到目前为止,我创建了下面的函数,但由于某种原因,没有调用checkBranding。
function searchPageArray(brand, siteObjArr) {
return Promise.map(siteObjArr, function(sitesObj){
var k = Object.keys(sitesObj)[0]
var urlArr = sitesObj[k];
return Promise.map(urlArr, function(url){
return searchPage(url).then(function(html){
var tempObj = {}
tempObj[url] = checkBranding(url, html, brand)
return tempObj
})
})
return sitesObj;
})
}
感谢您的帮助!
答案 0 :(得分:0)
您可以使用bluebird.js的props()方法。
// You must use bluebird to achieve this
var Promise = require('bluebird');
function searchPageArray(brand, siteObjArr) {
return Promise.map(siteObjArr, function (sitesObj) {
var k = Object.keys(sitesObj)[0]
var urlArr = sitesObj[k];
return Promise.map(urlArr, function (url) {
return searchPage(url)
.then(function (html) {
// Use promise.props(). It resolves all properties of a
// object before returning. If there are any properties that
// arent promises they are returned as normal.
return Promise.props({
url: checkBranding(url, html, brand) // Assuming checkBranding() returns a promise.
});
});
});
return sitesObj;
});
}