@tidyjs/tidy/dist/es/vector/cumsum.js

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

import { fcumsum } from '../helpers/summation.js';

function cumsum(key) {
  const keyFn = typeof key === "function" ? key : (d) => d[key];
  return (items) => fcumsum(items, keyFn);
}

export { cumsum };
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