javascript object is empty or null code example

Example 1: 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 2: express check if object is empty

if(Object.keys(obj).length === 0) {

}

Example 3: javascript check if object is null or empty

if (typeof value !== 'undefined' && value) {
    //deal with value'
};