GAS是否提供“链接"功能?

问题描述

是否可以链接"功能?说，我有一个serverclickhandler，然后想立即调用另一个函数.我该怎么办?

Is it possible to 'chain' functions? Say, I have a serverclickhandler and then would like to invoke another function after it right away. How do I go about it?

谢谢.

推荐答案

要在第一个处理程序之后执行第二个处理程序，您只需直接从第一个处理程序中调用它即可，例如

To have a second handler executed after the first one you just need to call it directly from your first handler, e.g.

var app = null;
function firstHandler(e) {
  if( app == null )
    app = UiApp.getActiveApplication();
  //do your thing

  //now, instead "return app;" you return the second handler
  return secondHandler(e);
}

function secondHandler(e) {
  if( app == null )
    app = UiApp.getActiveApplication();
  //do your job
  return app;
}

我将app var放在了全局范围内，这样您就可以仅在必要时获取它(在函数之间共享而不显式传递它)，从而节省了可能代价高昂且未知的行为(至少对我而言) getActiveApplication()通话.

I placed the app var on a global scope so you can get it only when necessary (sharing it between the functions without explicit passing it), saving a possibly costly and unknown behavior (to me at least) of a second getActiveApplication() call.

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