Cant deploy function to Firebase functions

Question

I'm following the video of Doug on youtube to change a message with functions, I'm doing it in javascript, I have installed flow lenguage script since I had an error about 'types' can only be applied to ts files , now, that error is gone, but when I try to deploy my function I get this error message.

This is my code

const functions = require('firebase-functions'); const admin = require('firebase-admin'); admin.initializeApp(); exports.createdMessage = functions.database.ref('/users/messages/{messageId}').onCreate((snapshot,context)=>{ const messageID = context.params.messageId; console.log('Message ${messageID}'); const messageData = snapshot.val(); const message = placeEmoticon(messageData.message); return snapshot.ref.update({message:message}); }); function placeEmoticon(message : string): string { return message.replace(/\bcar\b/g,'🚗'); }

there is no ":" in javascript, it should be function placeEmoticon(message){return message.replace(/\bcar\b/g,'🚗');} — Peter Haddad
– Peter Haddad, Commented Oct 14, 2018 at 17:40
hi, thanks peter, but how javascript knows that parameter is a string type ? — Todd
– Todd, Commented Oct 14, 2018 at 17:52
this function placeEmoticon(message : string): string { return message.replace(/\bcar\b/g,'🚗'); } is in typescript typescriptlang.org/docs/handbook/functions.html, check this: stackoverflow.com/questions/12364614/… — Peter Haddad
– Peter Haddad, Commented Oct 14, 2018 at 17:56
Thanks so much, can you post this as an answer so I can accept it ? — Todd
– Todd, Commented Oct 14, 2018 at 17:58
I have this last error placeEmoticon is not defined at exports.createdMessage.functions.database.ref.onCreate — Todd
– Todd, Commented Oct 14, 2018 at 18:00

Peter Haddad · Accepted Answer · 2018-10-14 18:04:50Z

Change this:

function placeEmoticon(message : string): string { return message.replace(/\bcar\b/g,'🚗'); }

This is written in typescript where you can specify the return type and the type of the parameters. https://www.typescriptlang.org/docs/handbook/functions.html

into this:

function placeEmoticon(message) { return message.replace(/\bcar\b/g,'🚗'); }

Since you are using javascript.

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