parse-js/dist/transformers/stripPrefix.js

Utility library for object structure conversion.

'use strict';

var _transform = require('../lib/transform');

function StripPrefixTransformer(prefix) {
  if (!(this instanceof StripPrefixTransformer)) {
    return this.transform(new StripPrefixTransformer(prefix));
  }

  this._prefix = prefix;
}

StripPrefixTransformer.prototype.parse = function (source) {
  var prefix = this._prefix;
  var length = prefix.length;
  return _transform(source, function (result, value, key) {
    if (key.indexOf(prefix) !== 0) return;
    result[key.substr(length)] = value;
  }, {});
};

StripPrefixTransformer.prototype.reverse = function (source) {
  var prefix = this._prefix;
  return _transform(source, function (result, value, key) {
    result[prefix + key] = value;
  }, {});
};

module.exports = StripPrefixTransformer;