jquery – javascript, is there an isObject function like isArray?

jquery – javascript, is there an isObject function like isArray?

You can use typeof operator.

if( (typeof A === object || typeof A === function) && (A !== null) )
{
    alert(A is object);
}

Note that because typeof new Number(1) === object while typeof Number(1) === number; the first syntax should be avoided.

use the following

It will return a true or false

theObject instanceof Object

jquery – javascript, is there an isObject function like isArray?

In jQuery there is $.isPlainObject() method for that:

Description: Check to see if an object is a plain object (created
using {} or new Object).