Group Shifted Strings

Description

null

Solution(javascript)

/**
 * @param {string[]} strings
 * @return {string[][]}
 */
var groupStrings = function(strings) {

  const getHash = (str = "") => {
      const base = str.charCodeAt(0)
      let hash = "0"
      for(let i = 1; i < str.length; i++) {
          let diff = str.charCodeAt(i) - base
          if(diff < 0) {
             diff += 26 
          }
          hash = hash + "-" + diff
      }
      return hash
  }
  const map = strings.reduce((acc, str) => {
      const hash = getHash(str)
      acc[hash] = acc[hash] || []
      acc[hash].push(str)
      return acc
  }, {})
  return Object.values(map)
};