[Node.js]32. Level 7: Working with Lists -- Redis
As we saw in the video, redis can do more than just simple key-value pairs. We are going to be using redis lists later to add persistance to our live-moderation app, so let's practice using them now.
Using the redis client's lpush command, insert the two questions below into the questions list
var redis = require('redis');
var client = redis.createClient();
var question1 = "Where is the dog?";
var question2 = "Where is the cat?";
client.lpush("questions", question1);
client.lpush("questions", question2);
Now that we have seeded the questions list, use the lrange command to return all of the items and log them.
var redis = require('redis');
var client = redis.createClient();
client.lrange('questions', 0, -1, function(err, messages){
console.log(messages);
});
[Node.js]32. Level 7: Working with Lists -- Redis的更多相关文章
- [Node.js]31. Level 7: Redis coming for Node.js, Simple Redis Commands
Let's start practicing using the redis key-value store from our node application. First require the ...
- [Node.js]30. Level 6: Listen 'Question' from client, and then Answer the Question
Clients can also answer each other questions, so let's build that feature by first listening for the ...
- [Node.js]29. Level 6: Socket.io: Setting up Socket.io server-side & Client socket.io setup
Below we've already created an express server, but we want to start building a real-time Q&A mod ...
- [Node.js]24. Level 5: Express, Express routes
Create an express route that responds to GET requests at the URL /tweets that responds with the file ...
- [Node.js]23. Level 4: Semantic versioning
Update the versions on your dependencies to be a little more flexible, adding the ~ in front of your ...
- [Node.js]22. Level 4: Dependency
Add two dependencies to your package.json file, connect and underscore. You'll want to useconnect ve ...
- [Node.js]33. Level 7: Persisting Questions
Let's go back to our live-moderation app and add some persistence, first to the questions people ask ...
- [Node.js]28. Level 5: Express Server
Now let's create an express server which queries out for this search term and just returns the json. ...
- [Node.js]27. Level 5: URL Building & Doing the Request
Let's create a page which calls the twitter search API and displays the last few results for Code Sc ...
随机推荐
- sublime3176注册码破解汉化及常用插件
官方网站下载地址:https://www.sublimetext.com/3 破解软件下载地址:https://www.lanzous.com/i1a7zfi 破解软件下载地址备用:https://d ...
- Javascript:window.close()不起作用?
一般的窗口关闭的JS如下写法: window.close() 但是呢,chrome,firefox等中有时候会不起作用. 改为下面的写法: window.open("about:blank& ...
- PHP session用redis存储
redis的官方github这么说: phpredis can be used to store PHP sessions. To do this, configure session.save_ha ...
- Go语言特点
作者:asta谢链接:https://www.zhihu.com/question/21409296/answer/18184584来源:知乎 1.Go有什么优势 可直接编译成机器码,不依赖其他库,g ...
- zookeeper【1】配置管理
为什么要用统一配置? 我们做项目时用到的配置比如数据库配置等...我们都是写死在项目里面,如果需要更改,那么也是的修改配置文件然后再投产上去,那么问题来了,如果做集群的呢,有100台机器,这时候做修改 ...
- Problem D: 深入浅出学算法005-数7
Description 逢年过节,三五好友,相约小聚,酒过三旬,围桌数七. “数七”是一个酒桌上玩的小游戏.就是按照顺序,某人报一个10以下的数字,然后后面的人依次在原来的数字上加1,并喊出来,当然如 ...
- bzoj 4092 DP
简化题意: 给定两个集合A,B,A集合有一个权值,并且对应一个B集合的子集,求A的一个子集,满足权值和最小且对应的子集的并集是B集合. 感觉像网络流,但因为每个B中的元素对应一个A中的元素就行了,是o ...
- ZOJ 3631 Watashi's BG DFS
J - Watashi's BG Time Limit:3000MS Memory Limit:65536KB 64bit IO Format:%lld & %llu Subm ...
- Codeforces Round #295 (Div. 2)A - Pangram 水题
A. Pangram time limit per test 2 seconds memory limit per test 256 megabytes input standard input ou ...
- sql server 游标continue,总是死循环
也遇上过: 死循环是因为continue后又执行与上次相同的fetch了.在continue前加一个fetch next from就可以了.