Content-Type: text/html
Content-Length: 414

1. 4
12 vs 7, pop 'last'
11 vs 6, pop 'v7'
9 vs 5, pop 'v6'
4 vs 4, pop 'v5'
3 vs 3, pop ''
2 vs 2, pop 'v2'
1 vs 1, pop 'v1'
2. Exception type: parser.runtime,
Source: bug,
Comment: undefined method
4
{
"0":"v1",
"1":"v2",
"2":"v3",
"3":4
}
Exception type: parser.runtime,
Source: bug,
Comment: undefined method
5
{
"0":"v1",
"1":2,
"2":"v2",
"3":"v3",
"4":4
}
3. 2
4
2 // counted, OK
4. {}
{
"0":"v1",
"1":"v2"
}