[Solved] How to prevent users like the comment multiple times like “facebook or youtube like/dislike systems”? [closed]

If you want to show the users who liked/disliked a post (or a comment), you will have to insert a new row along with the user-id for each like/dislike. And regarding the multiple-likes problem, you will have to check whether or not there is a row with the same user-id and comment-ids as the ones … Read more

[Solved] How to intergate web application like Google Calendar?

Since this question can’t be closed because there is a bounty on it, I’ll add an answer to it: What you are looking for is called an “embeddable widget”. The idea is that you provide your end user (developer/webmaster) with a piece of javascript that will: If needed pull in more javascript from your server. … Read more

[Solved] Node Js application in client machine

There are simply too many questions here. I tried Electron Js to make application, but the problem is that, it takes extra memory in machine. While the memory consumption of electron application is usually larger than highly optimized native applications, it is comparable to running chrome standalone. So switching from electron to a node based … Read more

[Solved] Are Express Validator and Express Mutually Exclusive or Dependent Packages [closed]

Since v4.16.0 you no longer need to use body-parser, instead you can use express.json(). Once you have the request body you can use express-validator to validate the input. Code examples available here Edit To access the request body you have two options: app.use(bodyParser.json()) // Option A: middleware bodyParser app.use(express.json()) // Option B: in-built method Neither … Read more

[Solved] Mongodb and Express

http://mongoosejs.com/docs/populate.html elaborates with a very nice example. I have extracted the gist here for you { var personSchema = Schema({ _id : Number, name : String, age : Number, stories : [{ type: Schema.Types.ObjectId, ref: ‘Story’ }] }); var storySchema = Schema({ _creator : { type: Number, ref: ‘Person’ }, title : String, fans : … Read more

[Solved] How to setup NodeJS server and use NodeJS like a pro [closed]

NodeJS is JS runtime built on Chrome V8 JavaScript engine. NodeJS uses event-driven, non-blocking I/O model – that makes it lightweight and efficient. NodeJS has a package system, called npm – it’s a largest ecosystem of open source libraries in the world. Current stable NodeJS version is v4.0.0 – it’s included new version of V8 … Read more

[Solved] is there jade plugin that would allow manipulation using jquery styled syntax

This code does more or less what i wanted. And it’s natively supported. It’s called conditional attributes in docs. You can find more information about it in attribute section. Only works with latest version of jade. //- Suppose object passed is this – var selected=’about’; li(class={selected:selected==”home”}) Home li(class={selected:selected==”blog”}) Blog li(class={selected:selected==”about”}) About ..Will result in this: … Read more

[Solved] How can get two collection documents and calculate points using express.js?

exports.show = = function(req, res) { var userdata = [{ “productcode”: “9563456789”, “cost”: “1000” }, { “productcode”: “8756348947”, “cost”: “5600” }] var parameterObject = []; Parameter.find().exec(function(err, Parameters) { if (err) { return handleError(res, err); } // i want to push Parameters[0].value to parameterObject parameterObject.push({ pointvalue: Parameters[0].value }); return FindProducts(parameterObject, function(data) { console.log(data); }); }); function … Read more

[Solved] Accecing server side variable in Javascript(node.js, express.js, ejs) [closed]

In ejs you could do: put this in your ejs file var shapes = <%=the-Array-Of-Shapes%> from the route use: app.get(‘/your-route’,(req,res)=>{ res.render(‘your-ejs-file’,the-Array-Of-Shapes);//here you are passing the array and the renderer will do the job }) 2 solved Accecing server side variable in Javascript(node.js, express.js, ejs) [closed]