Youtrack hour/day/week notation converter to hours. Assumption is you never have more than one digit (for regexp split to work correctly)

hour-sum.js

const DURATION = {
  "d": 6,
  "w": "30"
};

[
  "?",
  "2h",
  "2h",
  "1d",
  "1w2d",
  "1w2h"
].filter(i => i !== "?")
.reduce((memo, item) => {
    return memo.concat(item.split(/(?=\d+)/))
},[])
.map(item => {
  const [number, period] = item.split(/(?=\w)/)
  return (DURATION[period] || 1) * number
})
.reduce((s, i) => s + i, 0)