Control z-index in Fabric.js

Question

In fabricjs, I want to create a scene in which the object under the mouse rises to the top of the scene in z-index, then once the mouse leaves that object, it goes back to the z

Answer 1

You can use these two functions to get z-index of a fabric object and modify an object's z-index, since there is not specific method to modify z-index by object index :

fabric.Object.prototype.getZIndex = function() {
    return this.canvas.getObjects().indexOf(this);
}

fabric.Canvas.prototype.moveToLayer = function(object,position) {
    while(object.getZIndex() > position) {
        this.sendBackwards(object);
    }
}