remove-object-props.js

// requires babel w/ babel-preset-es2017 & babel-plugin-transform-runtime
// for Object.entries support
// .babelrc
// {
//   "plugins": ["transform-runtime"],
//   "presets": ["es2017"]
// }
const errors = Object.entries({
	email: emailValidation.error,
	password: passwordValidation.error,
}).reduce((p, [k, v]) => {
	if (v) p[k] = v;
	return p;
}, {});

// const errors = Object.entries({
//   email: 'Required field',
//   password: null
// }).reduce((p, [...kv]) => {
// 	if (kv[1]) p[kv[0]] = kv[1];
// 	return p;
// }, {});





// VV OLDER APPROACH VV





const allErrors = {
  email: 'Required field',
  password: null
};

const errors = Object.keys(allErrors).reduce((p, c) => {
	if (allErrors[c]) p[c] = allErrors[c];
	return p;
}, {});

console.log(errors); // { email: 'Required field' }