peek()
Description
Read a byte from the file without advancing to the next one. That is, successive calls to peek()
will return the same value, as will the next call to read()
.
peek()
inherits from the Stream utility class.
Syntax
file.peek()
Parameters
file
: an instance of the File class (returned by SD.open())
Returns
The next byte (or character), or -1 if none is available.
See Also
- available()
- read()
- write()
- Stream.peek()
The text of the 86Duino reference is a modification of the Arduino reference, and is licensed under a Creative Commons Attribution-ShareAlike 3.0 License. Code samples in the reference are released into the public domain.