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Pure JavaScript
book

Pure JavaScript

by Allen R. Wyke, Jason Gilliam, Charlton Ting
August 1999
Intermediate to advanced
1488 pages
72h 53m
English
Sams
Content preview from Pure JavaScript

File.getPosition()

NES2+Syntax

							file.getPosition()

Description

The getPosition() method of the File object returns the zero-based index position of the current pointer in the file. If the pointer is on the first character, 0 is returned. If there is an error, -1 is returned.

Example

Listing 8.79 loops through each character, printing it on a new line next to its indexed location.

Listing 8.79 Using the getPosition() Method
 <SERVER> // Open the files var myLog = new File("/data/logs/today.log"); var mySummary = new File("/data/logs/summary.log"); myLog.open("r"); mySummary.open("w"); // Write the contents of the log file to the page for(var i = 0; i <= myLog.getLength(); i++){ myBytes = File.byteToString(myLog.readByte()); mySummary.write('Character ...
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Publisher Resources

ISBN: 0672315475Purchase book