doesn't work

[ABakumenko]

Hi,
I use knoclout. And use typescript. I paste your code to my page and it doesnt work.
I add new variable to my model
people = [ { firstName: "Mike", lastName: "Smith", age: 34 }, { firstName: "Ben", lastName: "Miller", age: 18 }, { firstName: "Rebecca", lastName: "Abbarno", age: 25 } ];

And paste your tablecode to my html page. I see table and data on my page. But when I click on header css is changing but data not sorting.