Learning SELECT statement and WHERE clause | SQL

In this article we'll learn SELECT and WHERE of SQL. Select statement is used for selecting rows from a table inside the database, we can also select particular column and rows upon conditions. Where clause is used to specify conditions for selecting rows.

SQL practice series

Websites you should consider while getting started with Web Development

In this article i have listed some cool website i used while learning web development. These website can be considered when you start learning web development, if you already know or experienced with the topic, then probably you won’t need it.

Basic terms for Database Management System

In this article, we'll see some basic terms for Database, Management System, such as data, metadata, raw data, etc.

What is a Database Management System ?

A DBMS is a software which lets you define schema of your data, organise the data, manipulate and retrieve the data.

Using import/export in NodeJs

The export statement is used when creating JavaScript modules to export live bindings to functions, objects, or primitive values from the module so they can be used by other programs with the import statement. The value of an imported binding is subject to change in the module that exports it.

Recurrence Relation

Recurrence relation is an equation that expresses the nth term of a sequence as a function of k preceding terms, for some fixed k (independent from n), which is called the order of the relation. Once k initial terms of a sequence are given, the recurrence relation allows computing recursively all the remaining terms of the sequence.

Amortized Analysis

Amortized analysis considers not just one operation but a sequence of operations on a given data structures or a database.

Analyzing control statements

Controls statements are basic building blocks for any algorithm, they decides that how your program will behave. Algorithm's control flow entirety depends on the control statements present in the algorithm. So, it's important to learn that how can we analyse the controls statements of an Algorithm.

Asymptotic analysis in practice

So far we have seen that what Asymptotic analysis is. In this article we'll explore the uses of Asymptotic analysis.

Asymptotic analysis

The asymptotic analysis defines the mathematical foundation of an algorithm's run time performance. If there is no input to an algorithm then the algorithm will always work at a constant time. Asymptotic analysis is the running time of any process or algorithm in mathematical terms.

Analysis of the Algorithm

The analysis of algorithms is the process of finding the computational complexity of algorithms—the amount of time, storage, or other resources needed to execute them.

What is the analysis of the Algorithm?

The analysis of algorithms is the process of finding the computational complexity of algorithms—the amount of time, storage, or other resources needed to execute them. Usually, this involves determining a function that relates the size of an algorithm's input to the number of steps it takes (its time complexity) or the number of storage locations it uses (its space complexity).

Introduction to Algorithm and Data Structure

A data structure is a named location that can be used to store and organize data. And, an algorithm is a collection of steps to solve a particular problem. Learning data structures and algorithms allow us to write efficient and optimized computer programs

What is Data structure?

In computer science, a data structure is a data organization, management, and storage format that enables efficient access and modification. More precisely, a data structure is a collection of data values, the relationships among them, and the functions or operations that can be applied to the data, i.e., it is an algebraic structure about data.

What is the Algorithm?

A method or set of instructions that must be followed when performing problem-solving operations. As a result, an algorithm is a collection of instructions that govern how a work is to be conducted step-by-step to achieve the desired result termed as an algorithm.

Design and Analysis of Algorithm

This course has been designed for students pursuing a degree in computer science, who want to learn data structure and algorithms, and who want to crack competitive programming or any related field. It attempts to help students to grasp the essential concepts involved in algorithm design, analysis and data structures.

The modern mode, "use strict"

For a long time, JavaScript evolved without compatibility issues. New features were added to the language while old functionality didn’t change.

Semicolon in JavaScript

Semicolons are an essential part of JavaScript code. They are read and used by the compiler to distinguish between separate statements so that statements do not leak into other parts of the code. The good feature is that JavaScript includes an automatic semicolon feature.

Comments in JavaScript

Commenting involves placing Human Readable Descriptions inside of computer programs detailing what the Code is doing. Proper use of commenting can make code maintenance much easier, as well as help make finding bugs faster. Further, commenting is very important when writing functions that other people will use.

Coding structure in JavaScript.

Structured programming is a programming paradigm aimed at improving the clarity, quality, and development time of a computer program by making extensive use of the structured control flow constructs of selection (if/then/else) and repetition (while and for), block structures, and subroutines.

How to run JavaScript in the page?

You might have heard that, JavaScript can manipulate the page. But, how to execute JavaScript for manipulating the page. In order to do that, you need to load the JavaScript code after the page loaded.

Let's say Hello to the JavaScript world

You'll see the Hello World example in many programming tutorials and we will start with Hello World too.

Introduction of developer console of browser

Code is prone to errors. You are likely to make mistakes while coding. You wrote a script for the browser. But when you make mistakes, then where will you see those mistakes. Here developer console comes into the picture.

Code editors for JavaScript

JavaScript code can be edited by any editor which can edit the text content of the file, like notepad, and text editor. Editing code in a normal text editor is not easy, nowadays we have so many powerful editors that can speed up our development.

JavaScript basic

JavaScript basic covers the module which will help you to get started with JavaScript.

An introduction to JavaScript

JavaScript often abbreviated as JS, is a programming language that is one of the core technologies of the world wide web (WWW), long side HTML and CSS. Over 97% of the websites are using JavaScript for client-side scripting. All major browsers have a dedicated JavaScript engine to execute code on the user's device.

Getting started with Redis and NodeJs

Although Redis is mainly known for in-memory cache, it also provides a few other interesting features out of the box.

Using Nginx as a reverse proxy

Nginx, stylized as NGIИX, is a web server that can also be used as a reverse proxy, load balancer, mail proxy and HTTP cache. In this article, we'll see the basics of Nginx installation and setting up the proxy.

25 MCQs of JavaScript | SET - 5

In this article, I have listed 25 javascript MCQs for you to practice. Comment your answer with proper justification.

25 MCQs of JavaScript | SET - 4

In this article, I have listed 25 javascript MCQs for you to practice. Comment your answer with proper justification.

25 MCQs of JavaScript | SET - 3

In this article, I have listed 25 javascript MCQs for you to practice. Comment your answer with proper justification.

How to use the free image API of Imgur with NodeJs?

JavaScript Interview Question | Creating our own util.promisify()

JavaScript Interview Question | Create setInterval() using setTimeout()

This is a very hot question in the JavaScript world. It has been asked so many times in the JavaScript interview. In this article, I'll try to explain to you the concept behind this.

Building a sleep function for JavaScript

The aim of building a sleep function is to allow the program to wait for a specified amount of time before executing the next line. The sleep function has many use cases, as you want to execute another service if the previous service takes more time, etc.

Creating a ToDo application in Vanilla JavaScript

You will learn a lot by creating a to-do application. You will learn how can you manipulate the DOM, create a new HTML element, adding a new HTML element in the DOM.

3 Free image hosting platforms

Image hosting platforms are the platforms, where you can host the image and share the image with the world. You don't need to host any server, just upload the image using either API/UI.

Free hosting providers for React

In this article, I am going to list 3 hosting service providers where you can host React applications. This article only aims for pricing metrics but not about how can you host the application. All these hosting providers have been used by me.

Simulate delay of specified seconds in JavaScript

As a use case, suppose you are building an API that might take 5 sec to respond. In order to simulate this, you need a function that can run for an exact 5 sec.

List of 39 HTTP status codes and their meaning

Each Status-Code is described below, including a description of which method(s) it can follow and any metainformation required in the response.

How to download an image from URL in nodejs

In this article, we'll learn that how can we download images from a remote URL. After downloading the image, we will encode it in base64 format.

Software Development Engineer | SDE1 | @Amazon

Amazon is hiring for Software Development Engineer | SDE1.

Software Engineer I (Fullstack), Version Control @postman

Clarion Technologies is hiring NodeJs develoeprs

Clarion Technologies is looking for topnotch Node JS Developers willing to work on projects with global customers. 50K On Joining Bonus + Permanent Work From Home

Benefits of using Enterprise mobility apps in 2021

25 MCQs of JavaScript | SET - 2

In this article, I have listed 25 javascript MCQs for you to practice. Comment your answer with proper justification.

Divisor Game a Dynamic programming problem to get started with DP

In this article, you'll learn that how can you use DP to reduce the execution time.

25 MCQs of JavaScript | SET - 1

In this article, I have listed 25 javascript MCQs for you to practice. Comment your answer with proper justification.

Mahindra Rise Fullstack Engineer Hiring Challenge | hackerearth

The count() and count_if() function in C++ | STL

In this article, we'll see that how can we use count() and count_if() function to count the element in the array.

The for_each function in C++ | STL

In this article, we'll see that how can we use the for_each function of C++.

The all_any_none_of function in c++ | STL

In this article, we'll see how to use all_of, any_of and none_of function in c++.

The use of is_sorted in C++ | STL | CPP

is_sorted function in STL is used to check if the input array is sorted or not. By default, it uses the $$>$$ binary operator to compare the elements, but you can customize the behaviour by passing the comparison function.

Capgemini is hiring Junior Software Developer

Capgemini is a global leader in consulting, digital transformation, technology and engineering services. The Group is at the forefront of innovation to address the entire breadth of clients’ opportunities in the evolving world of cloud, digital and platforms.

Data types and it's applications in JavaScript

Almost all programming language have built in data types and most of the modern programming languages also support user defined data types. In this article, i'll aim to attempt a quick overview of the data types.

DeTaSECURE NodeJs AWS Developer in Bangalore Urban, Karnataka, India Remote

DeTaSECURE NodeJs AWS Developer in Bangalore Urban, Karnataka, India Remote

Solving a basic number theory problem with c++

You are given two numbers, $$D \& N$$. You have to find $$sum(N)$$ applied $$D$$ times.

Nektar.ai is hiring for Software engineer

Nektar.ai looking for engineers who can hit the ground running, with at least a year’s experience building production servers using Node.js. Experience with the frontend is positive but not required.

Jobs of the week

This is jobs of the week

AMD is hiring Software Quality Engineer 1

Candidate will be part of Component Quality Engineering Team of about ~50 engineers. Validates 3D Driver components aggressively to meet Quality and Performance criteria before integrating to Mainstream.

Mettl is hiring Software Quality Engineer in Gurugram, Haryana, India (on site)

We are looking for a Strong QA professional who will be responsible for delivering high quality in a timely and cost-effective manner.

Associate Software Engineer(0-2 years) Immediate Joiners

The incumbent would be a part of Technology (Geeks) team within Assessment Solutions business and will be expected to strengthen our product by building and adding new products and improving the existing product features on the platform to improve existing offerings like:

Wipro is hiring Selenium-Test Engineer

As a Test Engineer, you should be able to understand the test requirements, design test cases, execute the test cases (Manual and Automated), ensuring schedule adherence to all milestone. You should ensure timely deliverables and weekly status reports, Test Execution Report and timely response to queries from clients and other stakeholders.

General Electric (GE) Hiring Graduate Engineer Trainee

General Electric (GE) India is hiring freshers as Graduate Engineer Trainee. Candidates from multiple batches are eligible for this role.

Java Developer

Job LocatioSummary In compute services division, we develop the common platform for all analytical solutions to fulfill all technology requirements. The existing team is being expanded to hire software engineers who will design, develop, debug, and maintain the world class software products which are used by fortune 500 companies. This team is responsible for the development of core pieces of SAS platform, security compliance and testing automation for the revenue generating products. It is an opportunity for junior developers to learn the best practices of development.

Embedding iframe on @dsabyte online editor

When publishing posts, you might often need to embed any content from some other website. You can just use the native iframe tag to embed any post.

Publishing a post on @dsabyte

Max Sum Contiguous Subarray

You are given an array $$A$$ and you have to find a continues sub-array of $$A$$ which has the largest sum over any other sub-array of $$A$$.

What is the algorithm?

The algorithm is a finite set of well-defined sequential instructions to perform any task. In computer science and mathematics, algorithms are used to solve a class of specific problems or perform any sort of computation.

How to write blogs on @dsabyte.com

Hi, I am Rahul, author of this site. I am very happy to launch this site and I am the one and only developer of this site. In this article, I'll show you that how can we publish any blog on @dsabyte.com

Middleware and its type in express in Nodejs - 1

Middleware is a kind of function that can change the request and response object and also can finish the request and response cycle.