code: function sortObjName(a, b) {
    let lenA = a.length
    let lenB = b.length
    let len = lenA > lenB ? lenB : lenA
  
    for (let i = 0; i < len; i++) {
      let codeA = a.charCodeAt(i)
      let codeB = b.charCodeAt(i)
      let cmpResult = cmpCode(codeA, codeB)
  
      if (cmpResult !== 0) return cmpResult
    }
  
    if (lenA > lenB) return 1
    if (lenA < lenB) return -1
  
    return 0
  }
docs: $, upperCase, lowerCase, _