React wins hand down in terms of usage, but Svelte was a big mover this year Surpassing React in developer satisfaction and doubling it's adoption over the last year
Typescript has won the battle of JS flavors
Both in terms of adoption and developer satisfaction, it left everyone else in the dust
Both dominate in adoption and developer satisfaction
Webpack still remains the most widely used build tool, but it has a lot of new competition this year
esbuild , has entered the scene by storm, a build tool written in Go, which boasts a 10-100x faster build time than the top players in the market Snowpack also claims faster build time than webpack and seems to be gaining a following.
React Native and Electron win the cross-platform space
But newcomer capacitor showed great interest and satisfaction from devs
Testing Library is one of the big winners this year
While Jest still remains the most widely used framework for testing. Testing library boasted record user satisfaction and grabbed a huge 26% adoption this year as a newcomer.