As io.js now supports ES6 you are finally able to use the const and let keywords. Obviously, let is the successor of var, just with some super-powers. But what
jstree
binning
movieclip
java-6
nim-lang
rkt
hostname-verifier
installshield
fullcalendar
handle-leak
lyft-api
installanywhere
libharu
seckeyref
multi-factor-authentication
google-settings
inverse-relationship
stdio
buildx
path-separator
url-helper
.net-core-5-preview-2
google-cloud-logging
cxxtest
postgresql-9.5
edge.js
point-of-sale
anomaly-detection
google-api-ruby-client
sceneform