Why do they use js for the client side logic? Cant they use ruby? I know phonegap appelarator and rhomobile allow for this with rhomobile but all ruby. As im

Why do they use js for the client side logic? Cant they use ruby? I know phonegap appelarator and rhomobile allow for this with rhomobile but all ruby. As im playing around with mobile applicaitons more im finding managing the javascript to be somewhat of a headache. So ive been wondering if theres ways to do with with other languages.