- Trending Categories
Data Structure
Networking
RDBMS
Operating System
Java
MS Excel
iOS
HTML
CSS
Android
Python
C Programming
C++
C#
MongoDB
MySQL
Javascript
PHP
Physics
Chemistry
Biology
Mathematics
English
Economics
Psychology
Social Studies
Fashion Studies
Legal Studies
- Selected Reading
- UPSC IAS Exams Notes
- Developer's Best Practices
- Questions and Answers
- Effective Resume Writing
- HR Interview Questions
- Computer Glossary
- Who is Who
Found 34477 Articles for Programming
![Rohan Singh](https://www.tutorialspoint.com/assets/profiles/638564/profile/60_146647-1681360804.jpg)
316 Views
In Python, the slice method allows us to extract specific elements from a sequence, such as strings, lists, or tuples. It provides a concise and flexible way to work with subsequences within a larger sequence. In this article, we will explore how to obtain the sum of the last K items in a list using slice operations. Algorithm To find the sum of the last K items in a list, we can follow a simple algorithm: Accept the list and the value of K as inputs. Use the slice operator to extract the last K items from the list. ... Read More
![Rohan Singh](https://www.tutorialspoint.com/assets/profiles/638564/profile/60_146647-1681360804.jpg)
1K+ Views
Dictionaries in Python allow you to store key−value pairs, making it easy to organize and access data efficiently. Sometimes, we may need to retrieve specific items from nested levels within a dictionary. We can use the isinstance() with the recursion method and dict.get() method to get the nested−level items from the dictionary. In this article, we will explore different ways to get particular nested−level items from Dictionary in Python. Nested Dictionary A nested dictionary is a dictionary that contains other dictionaries as values. This allows for the creation of hierarchical structures, where data is organized in a tree−like fashion. Each ... Read More
![Rohan Singh](https://www.tutorialspoint.com/assets/profiles/638564/profile/60_146647-1681360804.jpg)
2K+ Views
The Hyperlink−Induced Topic Search (HITS) algorithm is a popular algorithm used for web link analysis, particularly in search engine ranking and information retrieval. HITS identifies authoritative web pages by analyzing the links between them. In this article, we will explore how to implement the HITS algorithm using the Networxx module in Python. We will provide a step−by−step guide on how to install the Networxx module and explain its usage with practical examples. Understanding HITS Algorithm The HITS algorithm is based on the idea that authoritative web pages are often linked to by other authoritative pages. It works by assigning ... Read More
![Rohan Singh](https://www.tutorialspoint.com/assets/profiles/638564/profile/60_146647-1681360804.jpg)
77 Views
Time series data are mostly used when dealing with data that changes with time. Handling these data plays a very important role in data analysis of Time series data. Pandas, a popular data manipulation and analysis library in Python, provides robust functionality for working with time series data. In this article, we will understand through examples and explanations how to effectively utilize time series in Pandas. Ways to Utilize Time Series Data In the below methods we will be using the Electric_ptoduction time series data set that is taken from Kaggle. You can download the data set from here. Importing ... Read More
![Rohan Singh](https://www.tutorialspoint.com/assets/profiles/638564/profile/60_146647-1681360804.jpg)
156 Views
In Python, we can sort a dictionary by the value of a specific index, often referred to as kth index value by using various functions like Using the sorted() Function with a Lambda Function, Using the itemgetter() Function from the operator Module, Using a Custom Function with the sorted() Function, etc. In this article, we will understand these methods and how we can use them to sort a dictionary by kth index value in Python. Method 1: Using the sorted() Function with a Lambda Function This method utilizes the sorted() function with a lambda function as the key parameter to ... Read More
![Rohan Singh](https://www.tutorialspoint.com/assets/profiles/638564/profile/60_146647-1681360804.jpg)
7K+ Views
Sending emails from javascript is a common feature in most web applications. It allows you to automate notifications, send user−generated content, or facilitate communication with your users. We can use different methods like using Malito protocol, sending Emails with a Server−Side Language, and Implementing Email Sending through an API to send emails from Javascript. In this article, we will explore all of these methods to send email using javascript. Basics of Sending Email Before implementing the email−sending feature using different libraries and methods we need to what are the basic requirements to send emails. At a high level, sending an ... Read More
![Rohan Singh](https://www.tutorialspoint.com/assets/profiles/638564/profile/60_146647-1681360804.jpg)
2K+ Views
When working with arrays in JavaScript, cases often require selecting a random element from an array. In Javascript we can use various inbuilt methods like Math.random() with Math.floor(), using the Math.random() Method with a Helper Function, and Using the Array.prototype.sort() Method to select a random element from an array. In this article we will explore all these methods and explain them with the help of examples. Method 1:Using Math.random() with Math.floor() This method uses the combination of Math.random() and Math.floor() to generate a random index within the range of the array's length. Syntax array[Math.floor(Math.random() * array.length)]; Here, the Math.random(), ... Read More
![Rohan Singh](https://www.tutorialspoint.com/assets/profiles/638564/profile/60_146647-1681360804.jpg)
867 Views
When working with objects, we often need to search for the max value of an attribute in an array of objects. We can use various javascript inbuilt functions like reduce() method, and map() method and we can also use a simple for loop to search for the max value. In this article, we will explore all these methods and explain the methods with the help of examples. Method 1:Using for loops In this method, we iterate through the array of objects using a loop and compare the attribute value of each object with the current maximum value. Syntax for ... Read More
![Rohan Singh](https://www.tutorialspoint.com/assets/profiles/638564/profile/60_146647-1681360804.jpg)
5K+ Views
Searching for a string in text files is an important task while doing data analysis on text data. In Python, we can search for a string in textfile using various methods like reading and searching line by line, reading the entire file, and using regular expressions, using the grep command, etc. Method 1:Reading and Searching Line by Line One straightforward approach is to read the text file line by line and search for the desired string in each line. This method is suitable for smaller text files. Syntax for line in file: ... Read More
![Rohan Singh](https://www.tutorialspoint.com/assets/profiles/638564/profile/60_146647-1681360804.jpg)
421 Views
Pickle is a Python module that is used for serializing and deserializing Python objects. It allows you to save and load complex data structures, such as lists, dictionaries, and even custom objects, in a binary format. Pickling objects is a great way to store data, you might encounter scenarios where you need to search for specific information within a pickle file. In this article, we'll explore various methods to search a pickle file in Python. Understanding Pickle File A pickle file is a binary file that contains serialized Python objects. The pickle module in Python provides functions to ... Read More