@interaction/eagle/src/keys.js

JavaScript library

var _curry1 = /*#__PURE__*/require("./internal/_curry1");

var _isArguments = /*#__PURE__*/require("./internal/_isArguments");

var _has = /*#__PURE__*/require("./internal/_has");

var hasEnumBug = ! /*#__PURE__*/{
  toString: null
}.propertyIsEnumerable('toString');
var nonEnumerableProps = ['constructor', 'valueOf', 'isPrototypeOf', 'toString', 'propertyIsEnumerable', 'hasOwnProperty', 'toLocaleString'];

var hasArgsEnumBug = /*#__PURE__*/function () {
  'use strict';

  return arguments.propertyIsEnumerable('length');
}();

var contains = function contains(list, item) {
  var idx = 0;

  while (idx < list.length) {
    if (list[idx] === item) {
      return true;
    }

    idx += 1;
  }
};

var keys = typeof Object.keys === 'function' && !hasArgsEnumBug ? /*#__PURE__*/_curry1(function keys(obj) {
  return Object(obj) !== obj ? [] : Object.keys(obj);
}) : /*#__PURE__*/_curry1(function keys(obj) {
  if (Object(obj) !== obj) {
    return [];
  }

  var prop, nIdx;
  var ks = [];

  var checkArgsLength = hasArgsEnumBug && _isArguments(obj);

  for (prop in obj) {
    if (_has(prop, obj) && (!checkArgsLength || prop !== 'length')) {
      ks[ks.length] = prop;
    }
  }

  if (hasEnumBug) {
    nIdx = nonEnumerableProps.length - 1;

    while (nIdx >= 0) {
      prop = nonEnumerableProps[nIdx];

      if (_has(prop, obj) && !contains(ks, prop)) {
        ks[ks.length] = prop;
      }

      nIdx -= 1;
    }
  }

  return ks;
});
module.exports = keys;