Memoize - you never need constructor/property based dependency injection in JavaScript

app.js

const require1 = require('./require1');
const require2 = require('./require2');
const require3 = require('./require3');

console.log(require1.getValue());
console.log(require2.getValue());
console.log(require3.getValue());

mod1.js

const memoize = require('lodash/memoize');

module.exports = memoize(createIt);

function createIt (param) {
  let value = param || '';
  return {
    getValue: () => {
      return value;
    },
    setValue: param => {
      value = param
    },
  };
}

require1.js

const A = require('./mod1')('A');
module.exports = A;

require2.js

const AAgain = require('./mod1')('A');
AAgain.setValue('AA');
module.exports = AAgain;

require3.js

const B = require('./mod1')('B');
B.setValue('BB');
module.exports = B;