lodash: check object is empty

问题

I have this object: {"": undefined}

and when I check this object for empty in this way: _.isEmpty({"": undefined})

I get false result, maybe in lodash we have another method?

回答1:

Your example object is not empty so instead perhaps you want to test if all properties are undefined

let o = {foo: undefined};
!_.values(o).some(x => x !== undefined); // true

回答2:

_.isEmpty(obj, true)

var obj = {
  'firstName': undefined
, 'lastName' : undefined
};

console.log(_.isEmpty(obj)); // false

<script src="https://cdnjs.cloudflare.com/ajax/libs/lodash.js/4.17.4/lodash.js"></script>

Please, see http://www.ericfeminella.com/blog/2012/08/18/determining-if-an-object-is-empty-with-underscore-lo-dash/

回答3:

It depends on how you want to check it. Do you want to check some or every

Then what you can do is :

import { some, isEmpty } from 'lodash'
console.log(some(this.yourObject, isEmpty))

来源：https://stackoverflow.com/questions/37523996/lodash-check-object-is-empty