Error boundary is a component in React that catches an error within a component tree and prevents it from crashing the application. Here’s what to know.
QuerySelector() and getElementByID() are two JavaScript functions that can be used to retrieve HTML elements from a webpage. Learn how they work and their differences.
Null represents an intentional absence of a value, indicating a variable has been declared but has yet to be assigned a value. These are some of the most common methods for checking for null and values loosely equal to null in JavaScript.
JavaScript closures are created when a function is defined within another function. It’s a powerful concept that can lead to more efficient code. Learn more.
Finding a value in an array is useful for effective data analysis. Learn how to discover what a JavaScript Array contains using indexOf, includes, for loop, some methods and more.
Bubble sort is a sorting algorithm that uses comparison methods to sort an array. It has an average time complexity of O(n^2). Here’s what you need to know.
A callback function in JavaScript is a function that’s called after the first function has completed its task. Learn more about how they’re used and when to use them.
