Now, here we can use the map function to make this code more readable format. so if we are going to achieve this via traditional way then below snap will show you traditional way. Suppose we have to traverse each employee in the array and add the Bonus to their salary. Now, let’s understand the map, filter & reduce function and compare with traditional way with different cases.Ĭase 1. On which we have to perform some operation. Suppose we have an array of employee objects as shown below. After using these functions our code is much cleaner and easy to understand. In above situations, you might have traversed entire array object one by one and then processed it.įilter, map & reduce these three functions help us to deal such situation. You might need to select specific objects or manipulate the entire objects or find one of the objects. I am pretty much sure in your JavaScript programming life you might face the situation where you have to deal with large array objects where you have to fetch each individual array object and process it. Do you know filter, map & reduce function in JavaScript? If not then you are at the right place and surely you will enjoy this post.
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