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In Python, there are various types of operators used to perform specific functions, such as (**), (^), (%), and (//). The (**) operator represents exponentiation, (^) represents bitwise XOR, (%) represents the modulus operation, and (//) represents floor division. In this article, we will understand the workings of these operators. Exponentiation Operator (**) The exponentiation operator (**) is used to raise a number to a power. This operator works the same as the Python pow() method. In exponentiation, you need two numbers: the first is the base (the number you want to raise), and the second is ... Read More
A tuple in Python is an ordered, immutable collection that stores multiple items. It supports mixed data types, allows indexing, and is commonly used for fixed data structures. What is a Two-Dimensional Table? A two-dimensional table is a way of specifying data in rows and columns, similar to a spreadsheet or a table in a Word doc. Each row represents a record, and each column represents a specific property for that record. Example The following is a two-dimensional table consisting of three rows and three columns. It is structured along two axes: vertical rows and horizontal columns, This makes the ... Read More
Data conversion between different formats is a common requirement in modern web development and data processing pipelines. Among the most frequently needed conversions is transforming CSV (Comma Separated Values) files to JSON (JavaScript Object Notation), especially when working with Node.js applications.This complete tutorial describes various proven methods for CSV to JSON conversion in Node.js with instructions on processing header rows while handling internal field commas and optimizing performance for large file sizes. Why Convert CSV to JSON? The following section provides an understanding of the reasons behind converting CSV files to JSON documents. The majority ... Read More
In programming, it is very common to work with lists, which are collections of items. But sometimes, you may want to turn a list into a single string. So in this chapter, we will show you how you can do this in Python. We will use some simple explanations and examples to make this easy, so you can understand it very well. Understanding Lists So first, we need to understand what exactly a list is in Python. So, in simple terms, we can say it is a way to store multiple values. For example, you can have a list of ... Read More
To compare two strings in C++, we can use various inbuilt functions and approaches that are already discussed in the previous sections. However, there are some cases where we need to compare two strings case-insensitively, meaning that we need to ignore the case of the characters in the strings while comparing them. In this article, we will focus on learning how to compare two strings case-insensitively in C++. Here is a list of approaches for case-insensitively string comparison, which we will be discussing in this article with stepwise explanation and complete example codes. ... Read More
Complex numbers is the combination of both real and imaginary components. Sometimes they are written as a + bi, where - a is the real part or number, b is the imaginary part, i is the imaginary unit which is basically a square root of -1. The imaginary part is written as the letter i. It is basically a square root of -1. Python already has support for complex numbers so it is easy to use them. So in this article, we will explain the basic ideas of complex numbers in Python, like how to create them, ... Read More
In Python, a list is an ordered sequence that can hold several object types, such as integers, characters, or floats. In other programming languages, a list is equivalent to an array. Square brackets [] are used to denote it, and a comma (, ) is used to divide two items in the list. In this article, we will show you how to get a comma-separated string from a list using Python. Comma-Separated String using join() ... Read More
A list is a data structure in Python that is a mutable or changeable ordered sequence of elements. A list's items are any elements or values that are contained within it. Lists are defined by having values inside square brackets [], just as strings are defined by characters inside quotations. They are used to store multiple items in a single variable. In Python, strings are among the most widely used types. We can create them simply by enclosing characters in quotes. Python treats single quotes the same as double quotes. Creating strings is as simple as assigning a value to ... Read More
Sometimes it is necessary to divide a lengthy list into smaller and easy-to-read data. For example- if you wish to arrange a list of items in groups, it can be helpful to break it into small parts. This is useful for tasks like grouping data for analysis or showing items in a user interface. Python provides various simple methods to do this. In order to work with smaller data sets without losing any information, this article will show you how to split a list into uniformly sized chunks. What is List? List is one of the frequently used data ... Read More
Iterator and Enumeration are both cursors to traverse and access elements from the collection. They both belong to the collection framework. Enumeration was added in JDK1.0 and Iterator in JDK 1.2 version in the collection framework. Java Enumeration Enumeration: An enumeration is a special "class" that indicates a collection of constants. Enumeration can’t make structural changes in the collection because it has read-only access to its elements. It has the following methods − hasMoreElements(): The hasMoreElements() method checks to see if more elements exist in the underlying collection class nextElement(): The ... Read More