An easy way to do automated equals / hashCode for sets and maps in collection-js and immutable-js

equals_hashcode.ts

// Easy doesn't mean fast. See immutable-js docs for how to implement hashCode
// and equals (see ValueObject -- you just add in the methods to your
// class/object, no TS interfaces to implement).

import { MD5 } from 'object-hash';
import deepEqual from 'deep-equal';

const o1 = {
    a: 'hi',
    b: 4,
    c: [1, 2, 3],
    d: {
        da: 'hi',
        db: 'bye'
    }
};
const o2 = {
    a: 'hi',
    b: 4,
    c: [1, 2, 3],
    d: {
        da: 'hi',
        db: 'bye'
    }
};

const hashNum1 = parseInt('0x' + MD5(o1).substring(0, 8), 16) | 0;
const hashNum2 = parseInt('0x' + MD5(o2).substring(0, 8), 16) | 0;

console.log(hashNum1);
console.log(hashNum2);
console.log(MD5(o1));
console.log(MD5(o2));
console.log(deepEqual(o1, o2));