Add "collation" option to Intl.Collator #380
Description
#175
add "calendar" and "numberingSystem" option to Intl.DateTimeFormat and Intl.NumberFormat
Also notice "numberingSystem" is already an option in Intl.RelativeTimeFormat.
We should also consider add "collation" to Intl.Collator.
Notes by @littledan in #175 stated
"This patch leaves out "collation" because of a lack
of clear use cases."
Not sure what does that mean.
I think it is useful. For example, in Chinese, we may construct the following collator
var pinyin = new Intl.Collator("zh", {collator: "pinyin"});
var zhuyin = new Intl.Collator("zh", {collator: "zhuyin"});
var stroke = new Intl.Collator("zh", {collator: "stroke"});