padStart.js

import {
  append, compose, curryN, join, length, partialRight, prepend, repeat, subtract,
} from 'ramda'

const pad = (str, n, char = ' ', _f = append) => compose(join(''), _f(str), repeat(char), subtract(n), length)(str)
const padStart = curryN(3, pad)
const padEnd = curryN(3, partialRight(pad, [prepend]))

padStart.ts

import {
  append, compose, curryN, join, length, partialRight, prepend, repeat, subtract,
} from 'ramda';

const pad = (str: string, n: number, char = ' ', _f = append) => compose(
  join(''),
  _f(str),
  repeat(char),
  subtract(n),
  length)(str);
const padStart = curryN(3, pad);
const padEnd = curryN(3, partialRight(pad, [prepend]));