How to Create Objects with Dynamic Keys in Javascript ?
In JavaScript, objects typically consist of key-value pairs,there are scenarios where you might need to create objects with dynamic keys. Dynamic keys are determined at...
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Most commonly used docker commands with examples
In this article we will go through the most commonly used docker commands with examples. Docker Basic commands Show the current version of docker $...
How to check if an element is present in an array in JavaScript ?
In this article, we will look into different ways to find out if a javaScript array contains a value / element 1. Using Arrays.includes() The...
What are the different ways to create objects in JavaScript?
In javascript there are five different ways to create an object Using Object literal Using the ‘new’ keyword Using Object.create method Using Object.assign() Using ES6...
When to use foreach(), filter(),map() and reduce() in JavaScript?
forEach() : forEach method is one of the several ways to loop through arrays. forEach method takes a callback function and runs that callback function...
How many ways can you take input from the console in Java?
In Java, there are three different ways for reading input from the user in the command line environment(console). 1. Using Buffered Reader Class: This method...
How to create API server using Json Server
Json server is a Node module that you can use to create a dummy rest json web service and it is really helpful to make...
Oracle SQL : How to fetch a row that has the maximum value for a column
You often need to fetch a row that has maximum value for a specific column. For example, we have an ORDERS table and we want...
How to copy data from one table to another on Oracle?
Oracle database has syntax “CREATE TABLE … AS SELECT … “which allows you copy data from one table to another without predefining the target table....
How to create Auto Increment column in Oracle
In oracle, you can create Auto Increment column using sequence database object. Using Oracle sequence object you can generate unique value and assign that value...