The some() method in JavaScript checks if at least one element in an array passes a test provided by a function. It iterates through each element of the array, applies the test function, and returns a Boolean value indicating whether any of the elements satisfy the test. Let us look at its syntax, parameters, return […]
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A MongoDB database can have multiple collections, which can contain lots of documents. To find documents based on custom queries, the MongoDB Node.js driver provides us with two useful methods: find() and findOne(). Let’s see them in detail. How to Query MongoDB Documents in Node.js MongoDB database is implemented in NodeJS using the MongoDB module,
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Do you want to know how to convert SVG images to regular PNG? Well, there are plenty of SVG to PNG online converters available, but as a programmer let’s make our own. In this article, we will learn about the Sharp module in Node.js which can convert SVG to PNG in a few lines of
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In Python, the concept of Einstein summation helps us simplify the calculations of arrays. It provides a great help in solving matrices, particularly calculating their cross-product, dot product, sum of diagonals, etc. In this article, let us explore this concept and understand the numpy.einsum() function. Understanding Einstein Summation Einstein summation is something that helps us
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In web development, Node.js provides us with a runtime environment such that we can run JavaScript codes outside the web browser. It follows a non-blocking and event-driven architecture. Now the question is, is Node.js frontend or backend-oriented? Is Node.js Frontend or Backend? Before we study which side Node.js inclines on the most, let’s understand what
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There are many useful APIs for Node.js available as modules and libraries. The best part is that they are open source, meaning anyone can use them in their projects as well as contribute to them. Let me provide you with a list of the 10 best Node.js open-source APIs. List of Node.js Open Source APIs
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The find() method returns the first element that passes the given test function. This function does not execute for null elements and returns undefined if elements fail to pass the test case. In this tutorial, along with the find() method, we will also learn about many variants of this function that help us find the index,
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Maps in JavaScript store key-value pairs where keys can be of any type. It works well for adding and removing key-value pairs, making them suitable for applications in which performance is important. It also remembers the insertion order, ideal for sequence-dependent operations. How to Create a Map? There are two ways in which we can
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Readline Module is a built-in module in Node.js used for handling user inputs and providing resultant output to the command line. This module offers various methods to help interact with CLI. Using this tool we can create a fully functional CLI-based application. Let’s learn it in detail. Introduction to Node.js Readline The Readline Module is
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JSON stands for JavaScript Object Notation. It is used to structure data based on JavaScript object syntax, which is easy for humans to read/write and machines to parse. JSON is lightweight, making it perfect for fast data transmission over HTTP. It is compatible with almost any modern programming language such as C, PHP, Python, Java,
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