Ionic2 passing variable/array to function

Question

I'm VERY new to Ionic/Angular/Typescript...

I have the following button:

<button ion-button (click)="shareMe('hello')">Hello</button>
<button ion-button (click)="shareMe('world')">World</button>

And I have the following function:

shareMe(){
this.sharingVar.share($STRING)
.then(()=>{
    alert("Success");
  },
  ()=>{
     alert("failed");
  })
};

Basically, when I click a given button, I want to pass a VARIABLE to the function to process. The code above obviously doesn't work... but how do you do this in Angular/Typescript?

Is there a way to pass a variable $string to a function?

Please be as descriptive as you can. Much thanks.

dlcardozo · Accepted Answer · 2017-04-16 23:34:06Z

3

You just need to add the parameter to the shareMe() function.

shareMe(shareOption: string){
    this.sharingVar.share(shareOption)
        .then(() => {
            alert("Success");
        })
        .catch(() => {
            alert("failed");
        });
};

Update: added @Aluan Haddad suggestion because you are learning and this kind of things is something that you need to know now, not after you wrote 5k LoC.

edited Apr 16, 2017 at 23:34

answered Apr 16, 2017 at 23:18

dlcardozo

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6 Comments

Aluan Haddad Over a year ago

Indeed this is quite correct. Consider improving your use of promises by either (1) using catch(() => {}) instead of the second argument to thenwhich has awkward composability or (2) using async/await with try/catch.

robofred Over a year ago

@AluanHaddad I'm not familiar with either concept you've introduced. Can you give me a bit more info, or point me in the right direction for me to learn? Thanks much.

robofred Over a year ago

@camaron, I get how you setup the function. How would I change the code in the button? This didn't work: <button ion-button (click)="shareMe('world')">World</button>

Aluan Haddad Over a year ago

Why certainly. I will create a gist in a little bit.

robofred Over a year ago

@camaron UPDATE: Actually it worked like beautifully. I had a little bug. Thank you so much!

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