Netomi React Js Frontend Developer Interview Questions and Answers

Perform mathematical operations on 100 using given functions.

• The given functions are add20, multiply30, divide10, and subtract10.

• Start with 100 and apply the functions in the given order.

• The result will be ((100 - 10) * 30) / 10 + 20 = 290.

The polyfill for group method of Array is not available in ES6, but can be implemented using reduce method.

• The group method is used to group the elements of an array based on a given key.

• The reduce method can be used to implement the group method by iterating over the array and creating a new object with keys as the group values and values as the array of elements belonging to that group.

• The polyfill can be written as ...read more