Create your own closure for any function

customClosure.js

// Lets say we have some function 
var ar = 'Some value';
const f = (...args2) => console.log(ar, ...args2);
f(1) //Some value, 1



// Now lets change the behaviour
// without changing the function
const saveToClosure = (data) => {
  var ar = data;
  return f => (...args2) => typeof f === 'function' && eval(f.toString())(...args2)
}

const runFuncWithClosure = saveToClosure('Some different value');


const newF = runFuncWithClosure(f);
newF(1); // Some different value, 1