JAVASCRIPT

check javascript object not array and not null

function isObject (item) {
  return (typeof item === "object" && !Array.isArray(item) && item !== null && item!==undefined);
}

check javascript object not array and not null

In javascript an array is also an object, 
so most of the time you want to exclude the array: 

function isObjectExcludeArray(obj){
	return (obj === Object(obj) && Object.prototype.toString.call(obj) !== '[object Array]');
}

check javascript object not array and not null

function isObject(val) {
    if (val === null) { return false;}
    return ( (typeof val === 'function') || (typeof val === 'object') );
}