In JavaScript, arrays are a common data structure used to store collections of elements. Typically, when you add elements to an array, JavaScript will automatically update the array’s length property. At first glance, this code might look like it would simply add a 10 to the end of the array, but there’s more going on […]
In JavaScript, arrays are a versatile data structure that can hold multiple values, with each value accessible via an index. One fascinating aspect of JavaScript arrays is the length property. While it’s commonly thought of as simply the number of elements in an array, this property is more dynamic than you’d think. You can manipulate […]
If you’ve ever encountered the expression console.log({} + []) in JavaScript, you might have been confused by the result: “[object Object]”. The combination of {} (an empty object) and [] (an empty array) doesn’t seem intuitive, but there’s a good explanation for why JavaScript behaves this way. Let’s dive into the reasoning behind this seemingly […]
JavaScript is a dynamic and flexible programming language, often surprising developers with its type coercion and operator precedence. One expression that might puzzle beginners (or even some experienced developers) is true + true + true * 3. Let’s break this down to understand what’s really happening behind the scenes. The expression: true + true + […]
When working with numbers in JavaScript, you may have encountered an unexpected result like this: At first glance, this might seem like a bug, but it’s actually a well-known behavior caused by the way numbers are represented in computers. In this blog, we’ll break down the reasons behind this issue, explore how JavaScript handles numbers, […]
JavaScript is a dynamic, loosely typed language, which means it automatically converts between data types in certain situations. This automatic conversion, called type coercion, can sometimes lead to unexpected results. In this blog post, we’ll break down the expression console.log(1 + ‘1’ – 1) and explain what’s happening under the hood. 1. What Happens When […]
