How to save object parameters in fabric.js and then load the given object with these parameters?

Question

JavaScript

Good evening!
there is a link to the constructor .
When you type in the input field, the text on the T-shirt appears. Then we press the "see back" button, the reverse side appears.
Then we click on the "see front" button and enter the text in the input. The old text is preserved and the new text is overlaid on top of it.
Question:
How to implement so that the text is not superimposed, but the one that was entered earlier is edited?

Answer 1

You can add an identifier to the created text like this

var textCanvas = new fabric.IText(text, { 
                      id:'inscription'
                    });

When you press the button, go through the elements of the canvas, change the inscriptions

for (var i = 0; i < canvas._objects.length; i++) {
        		if(canvas.item(i).id == 'inscription') {
        			// заменить текст
        		}
        	}