Arrow Functions have become a staple in modern JavaScript development, offering a concise and elegant syntax for defining functions. However, with their simplicity come certain pitfalls that developers should be aware of.
In this article, we’ll explore two common pitfalls of Arrow Functions: context and hoisting. Understanding these pitfalls is crucial for writing robust and error-free JavaScript code.
Context in Arrow Functions
One of the most significant differences between Arrow Functions and traditional functions is how they handle the this keyword. Traditional functions have their own this context, which is dynamically determined based on how the function is called. In contrast, Arrow Functions inherit the this value from the surrounding lexical scope at the time of their definition.
Let’s examine an example to illustrate this difference:
const obj = {
message: 'Hello',
greet: function() {
setTimeout(function() {
console.log(this.message); // `this` refers to the global…