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Showing posts from October, 2019

How To Apply Form Validation In Node.

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Image by Gerd Altmann from Pixabay Open the console and create a new folder named validations by typing command mkdir followed by folder name. Change to the new folder by typing command cd validations.  Now setup node project by typing npm init. This will auto generate a package.json file in folder. now add a add.js file and then open the package.json and in " scripts" write "start":"app.js". The package.json will look like this.  Now type npm install followed by package name. We install the following packages: express ejs body-parser express-validator. Now add a folder name views . And in it make a new file names register.ejs. app.js var express = require ( 'express' ); var bodyParser = require ( 'body-parser' ); var path = require ( 'path' ) var {check,validationResult} = require ( 'express-val

CURD operations in node.

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Image by StartupStockPhotos from Pixabay Setup Node On System    If you dont have node installed on your system then you can download it   click here After installing the node on system.Open cmd and type node-v .It will give node version like this        Setup MongoDB On System  If you dont have mongodb installed on your system then you can download it from  here    Follow the installation instruction given there.   Now setup our node project  Open cmd type mkdir and give directory name. Now your directory to that using cd directory name which we created.  Now type npm init -y . this will make a package.json file in your folder. Now we will npm  install package which we will use in our project.And all these will be shown in package.json. The npm packages we will install here are express,mongoose,body-parser,ejs.          This is how package.json looks               A little info about packages we using body-parser will contain