Function getChangedProps

packages/decap-cms-widget-code/src/CodeControl.js:23–34

(previous, next, keys)

// TODO: relocate as a utility function
function getChangedProps(previous, next, keys) {
  const propNames = keys || uniq(Object.keys(previous), Object.keys(next));
  const changedProps = propNames.reduce((acc, prop) => {
    if (previous[prop] !== next[prop]) {
      acc[prop] = next[prop];
    }
    return acc;
  }, {});
  if (!isEmpty(changedProps)) {
    return changedProps;
  }
}

const languages = languageData.map(lang => ({
  label: lang.label,