File
input = open("examples/aoc/2021/day-1/input").lines()
Literal Specific Methods​
close()​
Returns
BOOLEAN
Closes the file pointer. Returns always true.
content()​
Returns
STRING|ERROR
Reads content of the file and returns it. Resets the position to 0 after read.
lines()​
Returns
ARRAY|ERROR
If successfull, returns all lines of the file as array elements, otherwise nil. Resets the position to 0 after read.
position()​
Returns
INTEGER
Returns the position of the current file handle. -1 if the file is closed.
read(INTEGER)​
Returns
STRING|ERROR
Reads the given amount of bytes from the file. Sets the position to the bytes that where actually read. At the end of file EOF error is returned.
seek(INTEGER, INTEGER)​
Returns
INTEGER|ERROR
Seek sets the offset for the next Read or Write on file to offset, interpreted according to whence. 0 means relative to the origin of the file, 1 means relative to the current offset, and 2 means relative to the end.
write(STRING)​
Returns
INTEGER|ERROR
Writes the given string to the file. Returns number of written bytes on success.
Generic Literal Methods​
methods()​
Returns
ARRAY
Returns an array of all supported methods names.
"test".methods()
["upcase", "find", "format", "reverse", "split", "replace", "strip!", "count", "reverse!", "lines", "downcase!", "upcase!", "size", "strip", "downcase"]
to_f()​
Returns
FLOAT
If possible converts an object to its float representation. If not 0.0 is returned.
1.to_f()
"1.4".to_f()
nil.to_f()
1.0
1.4
0.0
to_i(INTEGER)​
Returns
INTEGER
If possible converts an object to its integer representation. If not 0 is returned.
true.to_i()
false.to_i()
1234.to_i()
"4".to_i()
"10011010010"to_i(2)
"2322".to_i(8)
"0x2322".to_i()
1
0
1234
4
1234
1234
1234
to_json()​
Returns
STRING|ERROR
Returns the object as json notation.
a = {"test": 1234}
a.to_json()
{"test": 1234}
"{\"test\":1234}"
to_s(INTEGER)​
Returns
STRING
If possible converts an object to its string representation. If not empty string is returned.
true.to_s()
1234.to_s()
1234.to_s(2)
1234.to_s(8)
1234.to_s(10)
"test".to_s()
1.4.to_s()
"true"
"1234"
"10011010010"
"2322"
"1234"
"test"
"1.4"
type()​
Returns
STRING
Returns the type of the object.
"test".type()
"STRING"
wat()​
Returns
STRING
Returns the supported methods with usage information.
true.wat()
"BOOLEAN supports the following methods: to_s()"