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Classes
File
HasFailed

Function Shared Fast

`File:HasFailed`

Checks if the last operation has Failed

Syntax

Lua

my_file:HasFailed()

Returns

boolean if last operation failed

← Flush → IsBad

File

A File represents an entry to a system file.

See on File

On this page

Syntax
Returns
File

Unofficial documentation. This site is not the official nanos world documentation. It is a community project, generated automatically from the official API repository.

Function, class and type names and Lua code are kept in English: they are real API identifiers and translating them would break your code.

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Last updated: 19 August 2026