Blog Archives

Callbacks ?

Tweet What is Callbacks : You pass a function reference as a parameter to another function so that it can be executed at a later time function f1(a){ } function f2(b){ var a=10; b(a); } f2 (f1); Here i am

Posted in Javascript, Node.Js Tagged with: ,

Domain Module

Tweet A Node module called domain was introduced in Node 0.8.0 for handling errors. A domain module is like a flexible error handler for any and all errors that might be thrown within it. Using domains is the recommended method

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Try-Catch to catch uncaught errors

Tweet The first thing that comes to the mind about handling uncaught errors is to use the try-catch on operations that are likely to throw a data error. process.nextTick(function() { try { get_data(); } catch(err) { console.log(err); res.send(500, 'Oops!'); }

Posted in Express, Node.Js Tagged with: ,

Error Handling in Node js

Tweet Error handling is a pain, and it’s easy to get by for a long time in Node.js without dealing with many errors correctly. But building robust Node.js(Node js) apps requires dealing properly with errors, and it’s not hard to

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Template engine Jade

Tweet Templates allow you to split your presentation information out from your program code,making it easier to arrange your project files and render out web pages with complicated structure. I am using jade template for this. To install the Jade

Posted in Express, Node.Js Tagged with: ,

Express Application

Tweet A simple and small practical server built using Express. To begin, the variable app is initialized by calling the express() function from the express library. The require command instructs Node to import the library express and assign it to

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Strict Mode In A Browser

Tweet Modern browsers have a “strict” mode that you can enable with a very simple command: “use strict”.This is done for backward compatibility reasons with older browsers. When “use strict” is set inside of a function, that function is said

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Debugging memory leaks in nodejs ?

Tweet Debugging memory leaks in nodejs This is a quick tutorial for debugging memory leaks in nodejs. Step 1: Install the debugging tools First of all, you need to install the v8-profiler module. Without that required from within your app,

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Alert javascript?

Tweet The alert() method displays an alert box with a specified message and an OK button.An alert box is often used if you want to make sure information comes through to the user.If you are getting bored with the built

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Create self-signed SSL certificate in Ubuntu

Tweet What is SSL Certificate? SSL is an acronym for Secure Sockets Layer. SSL Certificates are small data files that digitally bind a cryptographic key to an organisation’s details. It creates an encrypted connection between your web server and your

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