JAVASCRIPT

map.getIn gives whole data if prop missing in js

var obj = Immutable.fromJS({
	categories: {
		1: 'a',
		2: 
	}
});
var output = obj.getIn(['categories', '2']);
alert(output);

map.getIn gives whole data if prop missing in js

var obj = Immutable.fromJS({
	categories: {
		1: 'a',
		2: 
	}
});
var output = obj.getIn(['categories', '2']);
alert(output);