> seems unlikely all browsers would implement it It's going through TC39 (the committee that decides how the JavaScript language should evolve) and recently re

> seems unlikely all browsers would implement it It's going through TC39 (the committee that decides how the JavaScript language should evolve) and recently reached stage 1 (proposals advance from stage 0 to stage 4). I believe that if it reaches stage 4, then that means that all browser vendors have agreed to implement it, so it certainly seems to be their goal.