@color-delta-e/utils/dist/index.mjs

Utils package for color-delta-e

import { isPerceivable, deltaE } from 'color-delta-e';

function filter(comparitor, filterList, options) {
  options = { threshold: 5, type: "rgb", ...options };
  return filterList.filter((color) => isPerceivable(comparitor, color, options));
}

function pipe(...funcs) {
  return (base, startingList, options) => {
    return funcs.reduce((acc, cur) => {
      return cur(base, acc, options);
    }, startingList);
  };
}

const sortMap = {
  asc: (type) => (comparitor) => (a, b) => {
    return deltaE(comparitor, a, type) - deltaE(comparitor, b, type);
  },
  dec: (type) => (comparitor) => (a, b) => {
    return deltaE(comparitor, b, type) - deltaE(comparitor, a, type);
  }
};
function sort(comparitor, toSort, options) {
  const direction = options?.direction || "asc";
  const type = options?.type || "rgb";
  return Array.from(toSort).sort(sortMap[direction](type)(comparitor));
}

export { filter, pipe, sort };