Syntax

File.seek

Move the file pointer to a specified position.


    
    
    
seek(offset, whence)

Examples

Read characters in reverse order.


    javascript
    
    
function main() {
    let str = "Hello FMZ!"
    let file = os.open("data.txt", "w+")
    file.write(str)

    // If i > str.length, seek() throws an exception (invalid argument)
    for (let i = 1; i <= str.length; i++) {
        file.seek(-i, 2)
        let data = file.read(1)
        Log("i:", i, ", data:", data)
    }

    file.close()
}

Returns

Type	Description
number	Returns the new file pointer position.

Arguments

Name	Type	Required	Description
offset	number	Yes	Offset (in bytes).
whence	number	Yes	Reference position: 0=beginning of file, 1=current position, 2=end of file.