rmwc/src/docs/polyfills.js

A thin React wrapper for Material Design (Web) Components

const reduce = Function.bind.call(Function.call, Array.prototype.reduce);
const isEnumerable = Function.bind.call(
  Function.call,
  Object.prototype.propertyIsEnumerable
);
const concat = Function.bind.call(Function.call, Array.prototype.concat);
const keys = Object.getOwnPropertyNames;

if (!Object.values) {
  Object.values = function values(O) {
    return reduce(
      keys(O),
      (v, k) =>
        concat(v, typeof k === 'string' && isEnumerable(O, k) ? [O[k]] : []),
      []
    );
  };
}

if (!Object.entries) {
  Object.entries = function entries(O) {
    return reduce(
      keys(O),
      (e, k) =>
        concat(
          e,
          typeof k === 'string' && isEnumerable(O, k) ? [[k, O[k]]] : []
        ),
      []
    );
  };
}