1 10
   2 fromCharCode.length = 1
   3 ABCD
   4 concat.length = 1
   5 javascript is great!
   6 slice.length = 2
   7  world
   8 orl
   9 substring.length = 2
  10 java
  11 script
  12 script
  13 toLowerCase.length = 0
  14 java
  15 java
  16 toUpperCase.length = 0
  17 JAVASCRIPT
  18 JAVASCRIPT
  19 localeCompare.length = 1
  20 -1
  21 0
  22 trim.length = 0
  23 java
  24 java
  25 2
  26 3
  27 true
  28 true
  29 false
  30 false
  31 h
  32 l
  33 undefined
  34 true
  35 false
  36 true
  37 false