I have been doing different things w/ Ruby for a couple of years now and the only bad thing I can say about it is that it makes programming in other languages feel awfully burdensome. = )

Ruby's keyword args work a little differently than similar implementations (selectors in Objective C, for instance). The value on the right-hand side of the colon is the default, not the local name.

in languages (like JavaScript and Java) where external objects do have direct access to instance vars

語 is the suffix which means 'language'. Unlike English which needs two different nouns for a country and its language, in Japanese, you can simply add 語 after the name of a country to mean the language spoken in that country. (e.g. ドイツ = Germany, ドイツ語 = German, フランス = France, フランス語 = French)

For event listeners we support the standard jsx naming convention onEventname (this is converted to on:eventname in svelte) as well.