When I build a dashboard or a Node.js data-processing script, I sometimes need code to run once before I know whether it should run again. A retry operation, a menu prompt, or paginated API processing are common examples. That is exactly where the TypeScript do-while loop helps. It runs the loop body first and checks … Read more >>
When I build a support-ticket dashboard, I often need to display every ticket returned by an API, calculate totals, or flag overdue requests. Writing the same code for every ticket would become impossible to maintain. That is where TypeScript loops help you execute code multiple times without repeating yourself. TypeScript is JavaScript with optional static … Read more >>
When I build a support-ticket dashboard, I often need to scan recent tickets until I find one that needs urgent attention. Continuing through hundreds of remaining records wastes work and makes the code harder to follow. That is exactly where the break statement helps. The break statement lets you stop a TypeScript loop immediately when … Read more >>
In this tutorial, I will explain how to create and use an empty string array in TypeScript with some examples. I will show you various methods to declare and manipulate string arrays, ensuring you can handle them efficiently in your TypeScript projects. What is an Empty String Array in TypeScript? An empty string array in … Read more >>
In this tutorial, I will explain how to declare and initialize empty arrays in TypeScript. As a developer working on a project for a US-based company, I recently faced a challenge where I needed to create an empty array to store a list of employees. After researching and experimenting with different approaches, I discovered the … Read more >>
Recently, I was working on a financial application for an investment firm where data integrity was critical. We needed to ensure that specific arrays of stock prices couldn’t be accidentally modified after initialization. To handle errors that occur when an array is accidentally changed, we can use read-only arrays to keep the data safe and … Read more >>
To round a number to 2 decimal places in Python, use round(value, 2): round(1234.5678, 2) returns 1234.57. If you only need the number to look right on screen, format it instead with an f-string: f”{value:.2f}”, or f”${value:,.2f}” for dollars. For money, use the decimal module so half-cents always round up. This guide shows each way … Read more >>
np.uint8 is NumPy’s unsigned 8-bit integer data type: every value uses one byte and must be a whole number from 0 to 255. That makes it the standard type for image pixels and other compact data. Create a uint8 array with np.array(values, dtype=np.uint8) or convert one with arr.astype(np.uint8), but watch out: values outside 0–255 wrap … Read more >>
Today, we will discuss an interesting topic in TypeScript. In this tutorial, I will explain how to clear a typed array in TypeScript while preserving its original type. Clear an Array in TypeScript While Preserving Its Type Let’s say we have an array of a custom type called Person in our TypeScript code: Now, suppose … Read more >>
While starting a new web development project, you might wonder whether to write your code in JavaScript or TypeScript. JavaScript is easy and widely used, while TypeScript adds additional features such as type checking and enhanced code safety. Choosing the right one depends on your project’s specific needs, team size, and long-term goals. In this … Read more >>