javascript - $q 解析函数此时未触发

Question

我以为我正在使用 AngularJS $q接口(interface)正确。但我传递给 then 回调的函数永远不会被执行。我在由 $q 包装的函数中调用 resolve 。我已经验证了 resolve() 正在被调用，但这似乎与 .then() 链接的函数不同:

$q(function(resolve, reject) {
  resolve();
  reject();
  console.log("This happens");  //This shows that resolve() is being called
}).then(function() {
  console.log("This doesn't");  //Yet this never gets executed
}).catch(function() {
  console.log("This also doesn't happen");
});

输出为:

This happens

我做错了什么？

我的环境是使用 mocha 和 sinon-chai 的 KarmaJS 单元测试。

Answer 1

您需要调用$rootScope.$apply()。

$q(function(resolve, reject) {
  resolve();
  console.log("This happens");  //This shows that resolve() is being called
}).then(function() {
  console.log("This too!");
});
$rootScope.$apply();