@tidyjs/tidy/dist/es/count.js

Tidy up your data with JavaScript, inspired by dplyr and the tidyverse

import { arrange, desc } from './arrange.js';
import { groupBy } from './groupBy.js';
import { identity } from './helpers/identity.js';
import { tally } from './tally.js';
import { tidy } from './tidy.js';

function count(groupKeys, options) {
  const _count = (items) => {
    options = options != null ? options : {};
    const {name = "n", sort} = options;
    const results = tidy(items, groupBy(groupKeys, [tally(options)]), sort ? arrange(desc(name)) : identity);
    return results;
  };
  return _count;
}

export { count };
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