Question from the Javascript test

What is this programming technique called?

Hard

What is this programming technique called?

function add(n1) {
    return function(n2) {
        return function(n3) {
            return n1 + n2 + n3;
        }
    }
}

add(1)(2)(3); //6
Author: Jean-marie CléryStatus: PublishedQuestion passed 1953 times
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