'use strict';

// Implementation

const adder = (value) => {

const add = (a) => {

value += a;

if (value >= add.maxValue) {

setImmediate(() => {

const err = new Error('max value reached');

add.maxEvent(err, value);

});

}

return add;

};

// callback-last

add.max = (max, event) => {

add.maxValue = max;

add.maxEvent = event;

return add;

};

return add;

};

// Usage

// error-first

const maxReached = (err, value) => {

if (err) throw err;

console.log({ value });

};

try {

const a1 = adder(10).max(100, maxReached)(-5);

a1(25);

a1(50);

a1(75);

a1(100);

a1(-200)(50)(30);

} catch {

console.log('Never');

}

console.log('end');