jQuery tricks for DOM Manipulation In this article we will explore jQuery’s methods that help a web developer in their daily work. 1. Changing attributes with jQuery We can change HTML DOM elements like Divs, Lists, form elements etc ‘s attributes using jQuery very easily. addClass We can use add class to each set of
Insert a document using Node.js and mongoDB Suppose you have a mongoDB database for courses and you want to insert a record into the database using Node.js. First step is to install mongoDB driver for Node.js If it is not already installed. Please open command line and run following command. [crayon-5cbcee19023eb552512034/] This will install mongoDB
NodeJs and Express framework basics We have already learned how to select data from MongoDb using Nodejs findOne. In this article we will create a baisc Hello World program using NodeJs and Express. Consider a following program below. [crayon-5cbcee19099a3211875517/] In our first line we need to include ‘express’ module. If express is not already installed
Node Js, MongoDb select record with findOne To select a single record from mongoDB database using findOne() function in Node Js [crayon-5cbcee190b377314853177/] In the code below we use require function to include the module ‘mongodb’.MongoClient and is assigned to a variable MongoClient [crayon-5cbcee190b39a168547688/] After including mongodb module we have to connect to the server. Consider
Suppose we have a collection in MongoDB database, We want to select data from collection then we can do like the program below. Suppose we have a collection ( Like table in Relational DBMS) named grades and this collection is in course database. Grades collection contains fields like _id, student, grade and so on… now
We use named anchors or # tags to access certain part of a page like http://www.example.com#middle. Now clicking on this tag will take user to this tag but it will show whole url in address bar. If we want not to show # url in address bar but want to use named anchors. Use Jquery
Node.js is an upcoming new technology that has already got a lot of attention. Top notch tech companies like Microsoft, VMWare, Ebay, Yahoo, and many more are using node. Node.js is the amazing skill to open up new career opportunities for a programmer.