Software Engineering Perspectives Articles

Jonathan Hsu

Updated on May 22, 2025

In programming, for loops are best used when you know the number of iterations ahead of time, whereas a while loop is best used when you don't know the number of iterations in advance. Both methods can help you iterate through your code.

Stephen Fordham

Updated on May 22, 2025

A Python class decorator is a class that wraps a function inside an instance of the class, allowing you to modify or extend the original function’s behavior without changing the source code. Here's how to apply it.

K. Jagathish

Updated on May 22, 2025

The slice() method in JavaScript can be used on an array to return a shallow copy of a portion of the array, based on the start and end indices passed. Learn three different ways to use array slice in JavaScript.

Chaitanya Baweja

Updated on May 22, 2025

A progress bar in Python provides a visual of code execution progress, which can help indicate code errors or how long an operation will take to complete. Here’s how to build your own with four different Python libraries.

Matthew Henschke

Updated on May 22, 2025

The two-sum problem is a popular technical interview question that involves finding two indices in an array that add up to a target value. Here’s how to solve the two-sum problem using two common methods.

Vikram Gupta

Updated on May 22, 2025

The git reset command modifies Git commit history and lets you return to a specific commit with three options: --soft keeps changes staged, --mixed unstages changes and --hard unstages changes and removes them from the working directory.

Sadrach Pierre

Updated on May 22, 2025

A function in Python is a defined section of code that takes an input, performs a specific task and provides an output. Here, our expert introduces you to how they work in Python.

Max Reynolds

Updated on May 22, 2025

SOQL is Salesforce’s proprietary programming language that’s used to query data directly from your Salesforce. SQL is a language used to query data from a general database. Here’s what you need to know.

Artturi Jalli

Updated on May 22, 2025

Python 4.0 is unlikely to be released due to compatibility issues experienced during the transition from Python 2 to Python 3. Here’s more on why Python 4.0 won’t happen, how Python 3 is being improved and what it would take to make Python 4.0 a reality.

Artturi Jalli

Updated on May 22, 2025

The @ symbol in Python is used to apply a decorator to a function or method to extend its functionality, or to help perform matrix multiplication. Here's what to know about each use case.