javascript check if object is empty or undefined code example

Example 1: js check if object is empty

> !!Object.keys(obj).length;

Example 2: javascript check if object is null or empty

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

Example 3: javascript syntax for check null or undefined or empty

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