 | JavaScript | |||
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| Property/method value type: | Boolean primitive | |||
| JavaScript syntax: | NES | myFile.setPosition(aPosition) | ||
| NES | myFile.setPosition(aPosition, aControl) | |||
| Argument list: | aControl | A means of indicating what kind of offset to use | ||
| aPosition | A valid position within the file | |||
File positioning mechanisms are a fundamental part of building indexed record oriented files and managing fixed length records and fields in a sequential and variable length file structure.
The position control takes an integer value that selects a reference technique for setting the new position value.
A position control value of 0 (zero) indicates the new position should be measured from the start of the file.
A position control value of 1 adds the offset to the current position. This should allow forwards or backwards movement relative to the current position.
A position control value of 2 is measured relative to the end of the file.
| See also: | File.getLength(), File.getPosition() |
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JavaScript Programmer's Reference, Cliff Wootton Wrox Press (www.wrox.com) Join the Wrox JavaScript forum at p2p.wrox.com Please report problems to support@wrox.com © 2001 Wrox Press. All Rights Reserved. Terms and conditions. | ||
