@miyagi/core/lib/styleguide/spacings.js

miyagi is a component development tool for JavaScript template engines.

const { getCustomProperties } = require("./helpers.js");

module.exports = function getSpacings(obj, prefix) {
  const spacings = [];

  getCustomProperties(obj, prefix).forEach(({ property, value, mq }) => {
    // filter out negative spacings
    if (property.startsWith(`--${prefix}-`) && !value.startsWith("-")) {
      spacings.push({
        name: property.replace(`--${prefix}-`, ""),
        customProp: property,
        value,
        mq,
      });
    }
  });

  const deduped = {};

  spacings.forEach((e) => {
    if (!deduped[e.name]) {
      deduped[e.name] = {
        customProp: e.customProp,
        value: e.value,
      };
    }
  });

  return Object.entries(deduped);
};