Meaning of '{ }' in javascript

Question

What does assigning a variable to {}, mean? Is that initializing it to a function? I have code in a javascript file that says this

GLGE.Wavefront =          


        

Answer 1

Using {} creates an object. You can use the object like a hash-map or similar to how you can use arrays in PHP.

var obj = {};
obj['test'] = 'valuehere';
obj.secondWay = 'secondValue';

and you could access them by calling obj.test and obj['secondWay'].