/ofl

Convertion between nested object and flat one with delimited keys.

Primary LanguageJavaScriptMIT LicenseMIT

ofl

Build Status NPM version

Convertion between nested object and flat one with delimited keys. Yet another flatten/unflatten module with few differences:

  • no undefined values allowed
  • only primitives in arrays (no nested arrays and so on)
  • only plain objects
  • empty objects are ignored when flatten
  • only own and enumerable fields counts when flatten
  • no key conflicts allowed in flat object
  • no delimiter string in any key in nested object

It is intended to be useful for work with well-serializable config data.

Install

npm install ofl

Usage

const {
    flatten, //convert nested object to flat
    unflatten, //convert flat object to nested
    patch, //cange some fields in flat object
    validKeys, //test if array of keys are valid for flat object
    validValues,  //test if array of values are valid for flat object
} = require('ofl');

flatObj = flatten(nestedObj, delimiter);
nestedObj = unflatten(flatObj, delimiter);
//throw error if inappropriate object sent
//delimiter is optional, defaults to '.'

patchedFlatObj = patch(flatObj, diffFlatObj);
//throw error if diffFlatObj keys is not subset of flatObj keys

validKeys(Object.keys(flatObj));
validValues(Object.values(flatObj));
//throw error if inappropriate key or value

License

MIT