Leaflet vs. ArcGIS API for JavaScript
Take a look at this side-by-side comparison of Leaflet and ArcGIS API for JavaScript.
At a Glance
Leaflet
About Leaflet
Leaflet is the open-source JavaScript library for mobile-friendly interactive maps.
ArcGIS API for JavaScript
About ArcGIS API for JavaScript
ArcGIS API for JavaScript is a tool used to embed maps and tasks in web applications.