It already exists in the form of underscore/lodash. If the authors who used left-pad had looked at say underscore.string (https://www.npmjs.com/package/undersco

It already exists in the form of underscore/lodash. If the authors who used left-pad had looked at say underscore.string (https://www.npmjs.com/package/underscore.string https://www.npmjs.com/package/underscore.string), they'd have not only a pad function that works for left and right padding, but a whole slew of other useful (indispensable IMO) general functions and string functions. Next time they need a right-pad, they won't have to go looking for another extension or god-forbid actually copy and paste a 5 line function into their code. These libraries have been around for years and there is no excuse for not using them. Finally, there is no excuse for left-pad, even if no other alternatives were available, unless Copy/Paste functionality completely disappears off the face of the earth.