小编Bob*_*ark的帖子

我想在我的socket.io应用程序中访问express 4 session.我是Node的新手,我在实现这个功能时遇到了一些麻烦.

我发现了一个允许访问快速4会话的npm模块:https://www.npmjs.org/package/session.socket.io-express4或https://github.com/eiriklv/session.socket.io

如果你看下面我的app.js代码,我在做错了session,sessionStore或者cookieParser设置错误,因为我无法让这个模块工作.

// init modules
var express = require('express');
var helmet = require('helmet');
var fs = require('fs');
var path = require('path');
var favicon = require('static-favicon');
var logger = require('morgan');
var cookieParser = require('cookie-parser');
var bodyParser = require('body-parser');
var session = require('express-session');
var memoryStore = session.MemoryStore;
var app = express();

// set variables
var options = {
  key: fs.readFileSync('./openssl_keys/server_key.pem'),
  cert: fs.readFileSync('./openssl_keys/server_cert.pem')
};
var cookieSecret = "secret phrase"; …

我想显示一个由@我的文本区域中的单词触发的自动完成表单,如此库http://ichord.github.io/At.js/,但仅使用angularjs&css

我应该写什么样的指令？另外,有没有办法用angular bootstrap UI typehead指令实现它？

我使用指令检查电子邮件是否已在我的数据库中注册.

app.directive('uniqueEmail', function($http) {
    var toId;
    return {
        restrict: 'A',
        require: 'ngModel',
        link: function(scope, elem, attr, ctrl) { 
        //when the scope changes, check the email.
        scope.$watch(attr.ngModel, function(value) {
                // if there was a previous attempt, stop it.
                if(toId) clearTimeout(toId);
                // start a new attempt with a delay to keep it from
                // getting too "chatty".
            toId = setTimeout(function(){
                // call to some API that returns { isValid: true } or { isValid: false }
                    $http.get('check/e/' + value).success(function(data) {
                    //set the …

我有另一个ng-repeat内心ng-repeat.在第二个,我想通过$index和$parent.$index一个函数(使用ng-click或tooltip),我没有得到正确的索引.

为了使它工作,我需要使用$parent.$index和$parent.$parent.$index.

奇怪的是,我只需要为第二次重复这样做.这些值似乎只有在内部时才会出错ng-click或tooltip(如果我在ng-repeat中显示它们是正确的)

我做了一个plunker所以你可以看到结果:http://plnkr.co/edit/K6jWTffe8BqgLZhFIbHL？p = preview

<!DOCTYPE html>
<html>

  <head>
    <link data-require="bootstrap-css@~3.1.1" data-semver="3.1.1" rel="stylesheet" href="//netdna.bootstrapcdn.com/bootstrap/3.1.1/css/bootstrap.min.css" />
    <script src="https://code.angularjs.org/1.3.0-beta.17/angular.js" data-semver="1.3.0-beta.17" data-require="angular.js@1.3.0-beta.17"></script>
    <script data-require="ui-bootstrap@0.11.0" data-semver="0.11.0" src="http://angular-ui.github.io/bootstrap/ui-bootstrap-tpls-0.11.0.min.js"></script>
    <link href="style.css" rel="stylesheet" />
    <script>
      var app = angular.module('myApp', ['ui.bootstrap']);
      app.controller('MainCtrl', function($scope) {
        $scope.data = [
          {id: "1", text: "text 1", more: [
            {id_more: "10", text_more: "text more 10"},
            {id_more: "11", text_more: "text more …

我希望能够从我的快速路由文件向连接到socket.io服务器的客户端发送数据.

我的app.js看起来像这样:

var express = require('express');
var app = express();

//routes
require('./routes/test')(app);

// starting http server
var httpd = require('http').createServer(app).listen(8000, function(){
  console.log('HTTP server listening on port 8000');
});

var io = require('socket.io').listen(httpd, { log: false });
io.on('connection', function(socket){
    socket.join("test");
    socket.on('message', function(data){
       .....
    });
});
module.exports = app;

我的test.js文件:

module.exports = function(app){
    app.post('/test', function(req, res){
       .....
       //I would like here be able to send to all clients in room "test"
    });
};

我有这个字符串:

Hey I love #apple and #orange and also #banana

我想提取以#符号开头的每个单词.

目前我正在使用此代码实现它:

var last = 0;
var n = 0;
var str = "Hey I love #apple and #orange and also #banana";
do{
    n = str.indexOf("#", last);
    if(n != -1){
        //The code found the # char at position 'n'
        last = n+1; //saving the last found position for next loop

        //I'm using this to find the end of the word
        var suffixArr = [' ', '#'];
        var e …

我需要在div上设置一个高度,我想相对于设备屏幕设置它.

对于ie:

/*Extra small devices Phones (<768px)*/
.myClass { height: 200px; }

/*Small devices Tablets (?768px)*/  
.myClass { height: 400px; }

/*Medium devices Desktops (?992px)*/    
.myClass { height: 600px; }

/*Large devices Desktops (?1200px)*/
.myClass { height: 800px; }