AngularJS combining promises

promise_before.js

var theResults = [];

someAsyncWork().then(function(result){
    return getFirstValue().then(function (value) {
        theResults.push(value);
    });
}).then(function (result) {
    return getSecondValue().then(function (value) {
        theResults.push(value);
    });
}).then(function (result) {
    return getThirdValue().then(function (value) {
        theResults.push(value);
    });
}).then(function (result) {
    return getFourthValue().then(function (value) {
        theResults.push(value);
    });
});