写了一段代码，请各位兄弟姐妹大叔大爷看一下，有没有逻辑错误？使用时候会不会出现什么问题？谢谢~代码如下
var http = require(“http”); (function () { var mhttp; mhttp = { get:function (url) { var scuessCallbacks = [], errorCallbacks = [], responseHTML; var deferred = { done:function (callback) { if (typeof callback === ‘function’) scuessCallbacks.push(callback); return this; }, fail:function (callback) { if (typeof callback === ‘function’) errorCallbacks.push(callback); return this; } } http.get(url, function (res) { res.on('data’,function (d) { responseHTML = responseHTML + d; }).on('end’,function () { for (i = 0, n = scuessCallbacks.length; i < n; i++) { scuessCallbacksi; } }).on('error’, function (e) { for (i = 0, n = errorCallbacks.length; i < n; i++) { errorCallbacksi; } }); }); return deferred; } } module.exports = mhttp; })(module);
调用如下
mhttp.get(file_url).done(function (data) {
var mfile = fs.createWriteStream(DOWNLOAD_DIR + file_name);
mfile.write(data);
});
var http = require("http");
(function () {
var mhttp;
mhttp = {
get:function (url) {
var scuessCallbacks = [],
errorCallbacks = [],
responseHTML;
var deferred = {
done:function (callback) {
if (typeof callback === 'function') scuessCallbacks.push(callback);
return this;
},
fail:function (callback) {
if (typeof callback === 'function') errorCallbacks.push(callback);
return this;
}
}
http.get(url, function (res) {
res.on('data',function (d) {
responseHTML = responseHTML + d;
}).on('end',function () {
for (i = 0, n = scuessCallbacks.length; i < n; i++) {
scuessCallbacks[i](responseHTML);
}
}).on('error', function (e) {
for (i = 0, n = errorCallbacks.length; i < n; i++) {
errorCallbacks[i](e);
}
});
});
return deferred;
}
}
module.exports = mhttp;
})(module);
