How to use

flatten

function

in

LoDashFp

fp.flow([
  fp.filter((v, k) => isValidField(v)),
  fp.uniq,
  fp.map(replaceSelectAliases),
  fp.flatten,
 ])

const getTransformer = options => {
 const transformers = [];
 if (options.ignorePrefix)
  transformers.push(..._.flatten([options.ignorePrefix]).map(getTransformForIgnorePrefix));
 if (options.transform) transformers.push(options.transform);
 if (options.normalize)
  transformers.push(getTransformForNormalize(options.normalize, options.separator));
 if (_.isEmpty(transformers)) return;
 return kv => _.flatten(transformers).reduce((acc, transformer) => transformer(acc), kv);
}

fp.groupBy(_.head),
fp.filter(([k, v]) => Post.isEditablePostField(k)),
fp.flatten,
fp.map(_.toPairs),
fp.map(flattenObject),