Query Selector Helpers

gistfile1.js

/*

Quick and easy conversion of nodelist to array.
You're on your own for error handling - invalid selectors throw an exception!

Example:

qsa['.fooble'].forEach(function(node) {
  // do stuff
});

*/

function qsa(str) {
  return [].slice.call(document.querySelectorAll(str));
}

/*

The Promise version.

Example:

qsap('.fooble').then(function(nodes) {
  nodes.forEach(function(node) {
    // do stuff
  });
}, function(err){
  console.log('bad selector!');
})

*/

function qsap(str) {
  return new Promise(function(resolve, reject) {
    try {
      resolve([].slice.call(document.querySelectorAll(str)));
    }
    catch(ex) {
      reject(ex);
    }
  });
}