MongoDB: Aggregation
Aggregation operations process data records and return computed results. Aggregation operations group values from multiple documents together and can perform a variety of operations on the grouped data to return... Read More
Structured Query Language (SQL)
Some commonly used SQL Commands Operation Description SELECT extracts data from a database UPDATE updates data in a database DELETE deletes data from a database INSERT INTO inserts new data... Read More
माइक्रोसॉफ्ट Windows 11
Microsoft ने अपने नेक्स्ट जनरेशन Windows 11 को लॉन्च कर दिया है। यह Windows 10 को रिप्लेस करेगा। यह नया वर्जन लैपटॉप और कंप्यूटर की पूरी सीरीज के लिए उपलब्ध... Read More
JavaScript: localStorage and sessionStorage
HTML web storage provides two objects for storing data on the client: window.localStorage - stores data with no expiration date window.sessionStorage - stores data for one session (data is lost... Read More
JavaScript: Array functions/methods
Javascript is a web programming language used in modern web development. Many frameworks and libraries built in Javascript like Angular, React, Jquery, etc. Arrays are the data structure that can... Read More