check empty value in object javascript code example

Example 1: javascript check if object is empty

function isObjectEmpty(obj) {
    return Object.keys(obj).length === 0;
}

Example 2: check if object is empty javascript

const empty = {};
/* -------------------------
  Plain JS for Newer Browser
----------------------------*/
Object.keys(empty).length === 0 && empty.constructor === Object
// true
/* -------------------------
  Lodash for Older Browser
----------------------------*/
_.isEmpty(empty)
// true

Example 3: check undefined object javascript one liner set to emtpy

const isEmpty = Object.values(object).every(x => (x === null || x === ''));

Example 4: javascript test for empty object

// because Object.entries(new Date()).length === 0;
// we have to do some additional check
Object.entries(obj).length === 0 && obj.constructor === Object

Example 5: check if js object is empty

JSON.stringify({}) !== '{}';

Example 6: check undefined object javascript one liner set to emtpy

console.log(myVar == null ? myVar.myProp : 'fallBackValue');