react native - .replace function won't replace numbers in JavaScript?

Question

I am trying to change all of the '%2F' and '%2B' into '/' and '+' in order to retrieve an URL from Firebase for an encoded image, but somehow it shows me an error of undefined is not an object (evaluating 'NewText.replace')

Here's the part of the code:

getURL(){
    db.ref('/').once('value', (data) =>{
        let RetrieveData=data.toString();
        var NewText = RetrieveData.photoPath;
        var FinalText = NewText.replace(/%2F/g, "/").replace(/%2B/g, "+"); 
        this.setState({
          urlHolder: FinalText, 
      })
    });
  }

Is it because the .replace function can't replace numbers? If so, what function should I use then?

question from:https://stackoverflow.com/questions/65937640/replace-function-wont-replace-numbers-in-javascript

Answer 1

When you read data from Firebase you get back a DataSnapshot object. To get the JSON value from that, you call .val() on that DataSnapshot.

So most likely what you're looking for is:

let RetrieveData=data.val();