Compare JS Array Use Lodash

cases.js

const _ = require('lodash');

// compare object , same key and value, different key sort
function case1 () {
  const a = { k1: 'v1', k2: { k21: 'v21' } };
  const b = { k2: { k21: 'v21' }, k1: 'v1' };
  
  console.log(_.isEqual(a, b));
  
  // output 
  // true
}

// compare object, same key, different value
function case2 () {
  const a = { k1: 'v1', k2: { k21: 'v22' } };
  const b = { k1: 'v1', k2: { k21: 'v21' } };
  console.log(_.isEqual(a, b));
  
  // output 
  // false
}

// compare array, same element value, same sort
function case3 () {
  const a = { k1: 'v1', k2: { k21: 'v22' } };
  const b = { k1: 'v1', k2: { k21: 'v21' } };

  console.log(_.isEqual([a, b], [a, b]));
  
  // output 
  // true
}

// compare array, same element value, different sort
function case4 () {
  const a = { k1: 'v1', k2: { k21: 'v22' } };
  const b = { k1: 'v1', k2: { k21: 'v21' } };

  console.log(_.isEqual([a, b], [b, a]));

  // output 
  // false
}

// compare array, different element
function case5 () {
  const a = { k1: 'v1', k2: { k21: 'v22' } };
  const b = { k1: 'v1', k2: { k21: 'v21' } };

  const result = _.isEmpty(_.differenceWith([a], [b], _.isEqual));

  console.log(result);
  // output 
  // false
}