--- (1) ---
42
2
1
31
21
ArrayBuffer {
  [Uint8Contents]: <00 00 01 00 00 00 00 00>,
  byteLength: 8
}
1
Int8Array(3) [ 1, 2, 3 ]

--- (2) ---
Int8Array(8) [
  32, 0, 0, 0,
   0, 0, 0, 0
]
Uint8Array(8) [
  32, 42, 0, 0,
   0,  0, 0, 0
]

--- (3) ---
Yes, it's 16 bytes. ArrayBuffer {
  [Uint8Contents]: <e4 bd a0 e5 a5 bd 00 00 00 00 00 00 00 00 00 00>,
  byteLength: 16
}

--- (4) ---
Int32Array(4) [ -442450460, 48549, 0, 0 ]
-442450460
48549
0
0
Uint32Array(4) [ 3852516836, 48549, 0, 0 ]
0: -16924
1: -6752
2: -16987
3: 0
4: 0
5: 0
6: 0
7: 0
-9.488518762756437e+22

--- (5) ---
õ¢áÕÑ¢

--- (6) ---
䛠奛

--- (7) ---
[ 1, 2, 3, 4 ]
[ 1, 2, 3, 4 ]

--- (8) ---
3f f1 99 99 99 99 99 9a
9a 99 99 99 99 99 f1 3f
00010100