How to run an inline-function twice?-CodePudding

I'm using Gametime.js to make a world chat in real time.

Messages are stored in a database.

Gametime.js uses PubNub and for some reason PubNub needs the message sent twice so it actually does it.

How can I make a function run twice?

I've tried this:

for (let i = 0; i < 2; i  ) { gametime.run("msg", [msg]) }

And it works, it's just that I do this very often in my script, so is there a way to do it without a for/while loop?

Here's an example of what I'd like to achieve:

// inline code, cannot run for loop right here
function example(msg) { doSomething(), doSomethingElse, {{run twice}}, done() }

CodePudding user response：

You can create another function which will run your function twice, like this:

function twice (callback) {
  callback();
  callback();
}

twice(() => console.log('hello'));

However, if you're experiencing a scenario where you are having to invoke a function twice to get the desired result, it sounds like there's another problem somewhere (in some code that you didn't show).

CodePudding user response：

Try overwriting the run method, sounds like calling the method twice is a bug and this will make it easy to back out if it gets fixed.

gametime.oldRun = gametime.run;

gametime.run = (...params) => {
  this.oldRun(...params);
  this.oldRun(...params);
};

It could cause problems if internal methods call run so you could create run2

gametime.run2 = (...params) => {
  this.run(...params);
  this.run(...params);
};

Still easy to back out with a find and replace.