Dan's Software Engineering Handbook

Currying

Function currying is a functional design process. A function that takes multiple arguments are refactored into a function that takes a single argument. For example:

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function add(a, b, c) {
  return a + b + c;
}

add(1, 2, 3); // equals 6

becomes:

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function add(a) {
  return function(b) {
    return a + b;
  }
}

add(add(1)(2))(3) // equals 6

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