Troubles with range slider updating progress() method for timelineMax in React?

Hello Community - my second post as I'm very stuck trying to integrate a range-slider in React that will be friends with the progress() method to move through the timeline! I can pass around the value I need to my slider, but getting undefined errors when I try to pass this over to this.tl.progress(this.state.value) etc? I've read through several posts, but none look very current...in fact most are going back 2-3 years and the react-way has changed! Looking through the 'getting start

Ah ha - as we say in French - "le mot juste!" Rodrigo you sir are a Wizard! I got pretty close by the end of the day yesterday - I think it came down to missing a 'this' in front of my updateSlider callback! (it's a class...duh...). Now onto the next...I'm in awe of GSAP and the support from its community. There are some very exciting possibilities for making data visualizations here! My apologies again that I have not supplied any codepen or reduced case examples...since