JS associative arrays: add new pair

Question

I have an associative array in JS.

var array = {
    \'one\' : \'first\',
    \'two\' : \'second\',
    \'three\' : \'third\'
};

How can I add

Answer 1

array['newpair'] = 'new value';

or

array.newpair = 'newvalue';

This is quite a decent read on the subject.