ScalyNoteworthyGzip created by SyedAman - https://repl.it/@SyedAman/ScalyNoteworthyGzip

ScalyNoteworthyGzip.js

Function.prototype.curry = function () {
  const theOriginalFunctionDefinitionWeAreCurrying = this;
  const theFirstGroupOfParameters = arguments;
  
  return function() {
    const theSecondGroupOfParameters = arguments;
    
    return theOriginalFunctionDefinitionWeAreCurrying(...theFirstGroupOfParameters, ...theSecondGroupOfParameters);
  }
}

function add(x,y) {
  return x + y;
}

// unit test
const add1 = add.curry(1);
assert(add1(2) === 3);

const add7 = add.curry(7);
assert(add7(10) === 17);