In this tutorial, I will explain how to return a string in Python. As a data scientist working for New York-based clients, I need to process customer feedback data stored in a database as a part of my project for New York clients. My goal is to create a Python function that processes the data … Read more >>
In this tutorial, I will explain how to use a raw string in Python. As a data scientist working for a New York-based client, I had the task of processing text data stored in logs and ensuring the text strings were formatted correctly before analysis. The log files contain file paths, regex patterns, and other … Read more >>
You can create a Map from an array in TypeScript by passing an array of [key, value] pairs to new Map(). For an array of objects, turn each object into a pair with map() first, and TypeScript infers the key and value types for you: These snippets were checked with TypeScript 7.0.2 with Node.js v22.22.2 … Read more >>
A 2D array in TypeScript is an array of arrays, typed number[][] or Array<Array<number>>. Each inner array is a row, and you read a cell with two indexes, row first: sales[1][2]. The outputs below came straight out of the Windows Command Prompt, compiled with tsc –strict on TypeScript 5.2.2 and Node.js v22.22.2. You’ll build empty … Read more >>
To find an object in an array in TypeScript, use the array find() method with a condition on a property: products.find(p => p.id === 102) returns the first matching object, or undefined if there is none. TypeScript types the result as Product | undefined, so you must handle the missing case. This guide covers TypeScript … Read more >>
To get the sum of an array in TypeScript, call reduce() with an initial value of 0: it adds every element to a running total and returns a number. Always pass that 0, or an empty array will throw: I compiled each example with TypeScript 7.0.2 and Node.js v22.22.2 using strict mode, and the outputs … Read more >>
In this tutorial, I will explain how to sort a string in Python. As a Python developer working on a logistics application for a company in Los Angeles, I encountered a requirement to alphabetically sort location codes stored as strings. Sorting these codes was critical to ensure efficient searching and organization. Let us explore how … Read more >>
When I build dashboard screens, API activity views, or support-ticket widgets, the server often returns records in oldest-first order. Users usually expect the newest ticket or event at the top, so I need to reverse an array in TypeScript before displaying it. TypeScript is JavaScript with optional static types, which help you catch incorrect data shapes before … Read more >>
In this tutorial, I will explain how to extract a substring between two characters from a string in Python. As a Python developer based in the USA, I recently faced this issue while building a web scraper to extract product IDs from Amazon URLs as a part of my project for one of my clients. … Read more >>
In this tutorial, I will explain how to fix unterminated string literals in Python and how to resolve them. As a Python developer in the USA, I recently encountered this issue in one of my projects for New York clients. I explored more about this topic and I will share my findings in this article … Read more >>
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