- Use Array.prototype.map() to apply transforms to args in combination with the spread operator (...) to pass the transformed arguments to fn.
//#Source https://bit.ly/2neWfJ2 const overArgs = (fn, transforms) => (...args) => fn(...args.map((val, i) => transforms[i](val))); const square = n => n * n; const double = n => n * 2; const fn = overArgs((x, y) => [x, y], [square, double]); console.log(fn(9,3)); console.log(fn(5,2));
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