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JavaScript for Beginners: Understanding the Basics

Apr 3, 2025 · 2 min read · Let’s first describe about the data types in JavaScript there are 3 types of datatypes they are var, let const var can be redeclared and reassigned var x=10 var x=23 console.log(x) //23 these is allowed in var Let can be re assigned but not re-declar...

Mastering JavaScript Fundamentals: A Starter's Handbook

Apr 1, 2025 · 2 min read · for..in v/s for...of: By using the for..in i get the indexes only but with the help of those indexes i can get the values at that index. By using the for...of I can only get the value only values directly I don’t get the indexes. <script> let ar...

JavaScript Arrays Explained: Everything You Need to Know

Mar 31, 2025 · 1 min read · Array is special type of object that is used to store similar kind of in a single variable We can create an array in two ways by using literal and also by the help of new Array wee can use the difference between these two usage int arr=[9] <script> ...

Master Oracle SQL with Quick Revision Tips

Mar 31, 2025 · 2 min read · Basics Horizontal ones are called as rows, records, tuples Vertical ones are called as columns, field , attribute what is row? row is a collection of field values. what is column ? column is a collection of one field values Based on operation SQL is ...

Mastering Grid Layouts: A Detailed Overview

Mar 31, 2025 · 1 min read · Grid container A grid layout starts by setting a container element as grid using display property. display: grid; Grid Items The child items inside the container is called grid items. Defining rows and columns In a grid we can define as many as rows ...