Reactjs find9/5/2023 ![]() For more on that, check the MDN docs for example of that. It is also worthy of mentioning that there are other cool features you can use the array method to do. const numbers = const newValue = numbers.reduce( (accumulator, currentValue)=> accumulator + currentValue) console.log(newValue) // newValue will return 15 The code snippet below shows a single or the cumulated value being returned, after using the reduce method to add the accumulated value with the current value, the function is iterating over. The call back function takes in two parameters namely: accumulator and current value. It basically takes in two augments, a callback function and an initial value, performs an action, and returns a single value, the value being any type i.e. This is a great array method that uses an accumulator to reduce all elements in an array to a single value. const numbers = const newNumbers = numbers.map( number => number + 3) // newNumbers will be equal to. The code snippet below shows a new set of an array after using the map method to add 3 to each element in the numbers array. Simply put, it helps us create a new set of array based on an existing one. This array method takes in a function that will be called on each element in a given array and it returns a new set of an array without modifying the original array. Here are a few javascript array methods used in react.map() Simply put, an array method is a method that can be called on an array to perform an action on or with that array. I trust you'll find this very helpful.įirst off, let’s consider what is an array method. In this blog post, I’ve compiled some very popular array methods that are frequently used in react project. This makes it very important to understand some core concepts that will help you improve your development process. React is the most popular front-end library at the moment.
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