merge-most-frequent

JS library for merging objects like Object.assign but it takes the most frequent value instead of the last value

how to install?

yarn add merge-most-frequent or npm i --save merge-most-frequent

how to use?

const mergeMostFrequent = require('merge-most-frequent').default;
/*
 * or:
 * import mergeMostFrequent from 'merge-most-frequent';
 */

const objects = [
  {
    foo: 'foo1',
    bar: 'bar1',
    baz: 'baz1',
  },
  {
    foo: 'foo1',
    bar: 'bar2',
    baz: 'baz2',
  },
  {
    foo: 'foo2',
    bar: 'bar2',
    baz: 'baz1',
  },
];

expect(mergeMostFrequent(objects)).to.deep.equal({
  foo: 'foo1',
  bar: 'bar2',
  baz: 'baz1',
});

how does it work?

• for each field, it returns the most frequent value
• if many values occur for the same number of times, the most recently used value wins
• a field has to occur in at least one of the objects, to be included in the result