It is an advanced technique of working with functions that can accept multiple arguments. It will transform this function into a series of functions, where every function will accept one argument:

Non-curried version //
const sum = (a, b, c)=>{
    return a+ b + c
}
console.log(sum(2, 3, 5)) // 10

Curried version //
const sumCurry =(a) => {
    return (b)=>{
        return (c)=>{
            return a+b+c
        }
    }
}
console.log(sumCurry(2)(3)(5)) // 10
 

BY Best Interview Question ON 10 Aug 2022