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As a beginner-friendly programming language, TypeScript offers a variety of features to handle file operations effectively. Reading a file is a fundamental task that developers often encounter when working on projects. In this tutorial, we will explore different scenarios for reading files in TypeScript and provide clear explanations, along with syntax and code examples. Syntax const fileReader = new FileReader(); fileReader.onload = () => { const fileContent = fileReader.result as string; console.log(fileContent); }; The above is the syntax to read files in typescript. We create a new FileReader instance and use its onload ... Read More
In TypeScript, casting JSON objects inside classes can be a useful technique for mapping JSON data to structured TypeScript objects. By explicitly defining the types, we can ensure type safety and access the properties of the JSON object seamlessly. In this tutorial, we will guide you through the process of casting JSON objects inside TypeScript classes, enabling users to leverage the full power of TypeScript's static typing. Syntax Users can follow the syntax below to create a cast of a JSON object inside a TypeScript class. class MyClass { // Define class properties property1: ... Read More
I got started with Angular and TypeScript by realizing the importance of building scalable and maintainable web applications. Angular, as a web application framework, provided me with the tools I needed to build complex and dynamic applications with ease. TypeScript, as a statically typed superset of JavaScript, gave me the ability to write cleaner code, catch errors before runtime, and improve the overall scalability of my applications. In this tutorial, I will share my experience and guide you through creating a simple Angular application using TypeScript. We will cover the basics of Angular and TypeScript and provide a step-by-step guide ... Read More
First, let us understand what a crontab file is. Cron is a software utility that helps us schedule tasks on the Unix based systems. So basically, you’ll be able to periodically run assigned tasks, for example, automated system backups at the end of the day, to auto shutdown or set mode to DND at a particular time and more such features. These "tasks" in cron are usually defined in a file called crontab, which is basically a text file that contains the commands to be executed. Let us now learn how we can write these crontab files in Python using ... Read More
In the year 2015, Google unveiled Android Things, an embedded operating system platform. The phrase "Hardware based development" is used to describe Android Things. You may create IoT devices using the Android Things platform, which is an addition to the Android operating system. Since you are all familiar with Android Development, you can create Android Things using your current software skill set. To create IoT software quickly and efficiently, developers can use well−known tools like Android Studio and the Android SDK. They can then grow the hardware from a single prototype into mass production. Anyone can create commercial ... Read More
From news articles and e−commerce platforms to social media updates and blog posts, the web is a treasure trove of valuable data. However, manually navigating through countless web pages to gather this information is a time−consuming and tedious task. That's where web crawling comes in. What is Web Crawling? Web crawling, also known as web scraping, is a technique used to systematically browse and extract data from websites. It involves writing a script or program that automatically visits web pages, follows links, and gathers relevant data for further analysis. This process is essential for various applications, such as web indexing, ... Read More
When working with TypeScript, developers have access to various data structures to store and manipulate data. Two commonly used data structures are arrays and tuples. Both arrays and tuples allow us to store multiple values, but they differ in terms of their structure and usage. In this tutorial, we will explore the characteristics of arrays and tuples in TypeScript, discuss their differences, and provide examples to illustrate their applications. What is an Array? An array is a data structure that stores a collection of elements. It is an ordered list of values, where each value is identified by an index. ... Read More
Whoosh is a python library of classes and functions for indexing text and then searching the index. Suppose you are building an application that needs to go through various documents and then find similarities or get data from it based on a few predefined conditions, or let's say you want to count the number of times the title of the project is mentioned in a research paper, then what we are building in this tutorial will come in handy. Getting Started For building our text search engine, we will be working with the whoosh library. This library does not come ... Read More
Machine learning is a branch of artificial intelligence that allows machines to learn and improve on their own without explicit programming. Scikit−learn is a popular Python library for machine learning that provides various tools for predictive modeling, data mining, and data analysis. In this tutorial, we will explore how to develop a machine learning model using the scikit−learn library. We will start with a brief introduction to machine learning and the scikit−learn library. We will then move on to the main content, which includes data preprocessing, model selection, model training, and model evaluation. We will use a sample dataset ... Read More
Data visualization allows us to explore patterns, trends, and relationships within our data, enabling us to derive meaningful insights. In this tutorial, we will explore how to create a web−based data visualization dashboard using Python and Plotly Dash. What is Plotly Dash? Python, being a popular programming language for data analysis and visualization, offers various libraries and frameworks to create interactive visualizations. One such powerful framework is Plotly Dash. Plotly Dash is a Python framework that allows you to build interactive web applications and dashboards with ease. It combines the simplicity and versatility of Python with the flexibility and ... Read More