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doc: removed redundant mentions to error codes 

PR-URL: https://github.com/nodejs/node/pull/13627
Reviewed-By: Daniel Bevenius <daniel.bevenius@gmail.com>
Reviewed-By: Rich Trott <rtrott@gmail.com>
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>
Reviewed-By: Timothy Gu <timothygu99@gmail.com>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
v6
jklepatch 8 years ago
committed by Tobias Nießen
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2f34bf0f77
1 changed files with 79 additions and 99 deletions
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  1. 178
      doc/api/errors.md

178
doc/api/errors.md
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@ -565,16 +565,14 @@ found [here][online].
<a id="ERR_ARG_NOT_ITERABLE"></a> <a id="ERR_ARG_NOT_ITERABLE"></a>
### ERR_ARG_NOT_ITERABLE ### ERR_ARG_NOT_ITERABLE
The `'ERR_ARG_NOT_ITERABLE'` error code is used generically to identify that an Used generically to identify that an iterable argument (i.e. a value that works
iterable argument (i.e. a value that works with `for...of` loops) is required, with `for...of` loops) is required, but not provided to a Node.js API.
but not provided to a Node.js API.
<a id="ERR_CONSOLE_WRITABLE_STREAM"></a> <a id="ERR_CONSOLE_WRITABLE_STREAM"></a>
### ERR_CONSOLE_WRITABLE_STREAM ### ERR_CONSOLE_WRITABLE_STREAM
The `ERR_CONSOLE_WRITABLE_STREAM` error code is thrown when `Console` is Used when `Console` is instantiated without `stdout` stream or when `stdout` or
instantiated without `stdout` stream or when `stdout` or `stderr` streams `stderr` streams are not writable.
are not writable.
<a id="ERR_FALSY_VALUE_REJECTION"></a> <a id="ERR_FALSY_VALUE_REJECTION"></a>
### ERR_FALSY_VALUE_REJECTION ### ERR_FALSY_VALUE_REJECTION
@ -585,20 +583,19 @@ API when a callbackified `Promise` is rejected with a falsy value (e.g. `null`).
<a id="ERR_INDEX_OUT_OF_RANGE"></a> <a id="ERR_INDEX_OUT_OF_RANGE"></a>
### ERR_INDEX_OUT_OF_RANGE ### ERR_INDEX_OUT_OF_RANGE
The `'ERR_INDEX_OUT_OF_RANGE'` error code is used when a given index is out of Used when a given index is out of the accepted range.
the accepted range.
<a id="ERR_INVALID_ARG_TYPE"></a> <a id="ERR_INVALID_ARG_TYPE"></a>
### ERR_INVALID_ARG_TYPE ### ERR_INVALID_ARG_TYPE
The `'ERR_INVALID_ARG_TYPE'` error code is used generically to identify that Used generically to identify that an argument of the wrong type has been passed
an argument of the wrong type has been passed to a Node.js API. to a Node.js API.
<a id="ERR_INVALID_CALLBACK"></a> <a id="ERR_INVALID_CALLBACK"></a>
### ERR_INVALID_CALLBACK ### ERR_INVALID_CALLBACK
The `'ERR_INVALID_CALLBACK'` error code is used generically to identify that Used generically to identify that a callback function is required and has not
a callback function is required and has not been provided to a Node.js API. been provided to a Node.js API.
<a id="ERR_INVALID_CURSOR_POS"></a> <a id="ERR_INVALID_CURSOR_POS"></a>
### ERR_INVALID_CURSOR_POS ### ERR_INVALID_CURSOR_POS
@ -609,46 +606,44 @@ stream is attempted to move to a specified row without a specified column.
<a id="ERR_INVALID_FILE_URL_HOST"></a> <a id="ERR_INVALID_FILE_URL_HOST"></a>
### ERR_INVALID_FILE_URL_HOST ### ERR_INVALID_FILE_URL_HOST
An error with the `'ERR_INVALID_FILE_URL_HOST'` code may be thrown when a Used when a Node.js API that consumes `file:` URLs (such as certain functions in
Node.js API that consumes `file:` URLs (such as certain functions in the the [`fs`][] module) encounters a file URL with an incompatible host. Currently,
[`fs`][] module) encounters a file URL with an incompatible host. Currently, this situation can only occur on Unix-like systems, where only `localhost` or an
this situation can only occur on Unix-like systems, where only `localhost` or empty host is supported.
an empty host is supported.
<a id="ERR_INVALID_FILE_URL_PATH"></a> <a id="ERR_INVALID_FILE_URL_PATH"></a>
### ERR_INVALID_FILE_URL_PATH ### ERR_INVALID_FILE_URL_PATH
An error with the `'ERR_INVALID_FILE_URL_PATH'` code may be thrown when a Used when a Node.js API that consumes `file:` URLs (such as certain
Node.js API that consumes `file:` URLs (such as certain functions in the functions in the [`fs`][] module) encounters a file URL with an incompatible
[`fs`][] module) encounters a file URL with an incompatible path. The exact path. The exact semantics for determining whether a path can be used is
semantics for determining whether a path can be used is platform-dependent. platform-dependent.
<a id="ERR_INVALID_HANDLE_TYPE"></a> <a id="ERR_INVALID_HANDLE_TYPE"></a>
### ERR_INVALID_HANDLE_TYPE ### ERR_INVALID_HANDLE_TYPE
The '`ERR_INVALID_HANDLE_TYPE`' error code is used when an attempt is made to Used when an attempt is made to send an unsupported "handle" over an IPC
send an unsupported "handle" over an IPC communication channel to a child communication channel to a child process. See [`child.send()`] and
process. See [`child.send()`] and [`process.send()`] for more information. [`process.send()`] for more information.
<a id="ERR_INVALID_OPT_VALUE"></a> <a id="ERR_INVALID_OPT_VALUE"></a>
### ERR_INVALID_OPT_VALUE ### ERR_INVALID_OPT_VALUE
The `'ERR_INVALID_OPT_VALUE'` error code is used generically to identify when Used generically to identify when an invalid or unexpected value has been
an invalid or unexpected value has been passed in an options object. passed in an options object.
<a id="ERR_INVALID_SYNC_FORK_INPUT"></a> <a id="ERR_INVALID_SYNC_FORK_INPUT"></a>
### ERR_INVALID_SYNC_FORK_INPUT ### ERR_INVALID_SYNC_FORK_INPUT
The `'ERR_INVALID_SYNC_FORK_INPUT'` error code is used when a `Buffer`, Used when a `Buffer`, `Uint8Array` or `string` is provided as stdio input to a
`Uint8Array` or `string` is provided as stdio input to a synchronous synchronous fork. See the documentation for the
fork. See the documentation for the [`child_process`](child_process.html) [`child_process`](child_process.html) module for more information.
module for more information.
<a id="ERR_INVALID_THIS"></a> <a id="ERR_INVALID_THIS"></a>
### ERR_INVALID_THIS ### ERR_INVALID_THIS
The `'ERR_INVALID_THIS'` error code is used generically to identify that a Used generically to identify that a Node.js API function is called with an
Node.js API function is called with an incompatible `this` value. incompatible `this` value.
Example: Example:
@ -664,144 +659,129 @@ urlSearchParams.has.call(buf, 'foo');
<a id="ERR_INVALID_TUPLE"></a> <a id="ERR_INVALID_TUPLE"></a>
### ERR_INVALID_TUPLE ### ERR_INVALID_TUPLE
An error with code `'ERR_INVALID_TUPLE'` is thrown when an element in the Used when an element in the `iterable` provided to the [WHATWG][WHATWG URL
`iterable` provided to the [WHATWG][WHATWG URL API] [`URLSearchParams` API] [`URLSearchParams`constructor][`new URLSearchParams(iterable)`] does not
constructor][`new URLSearchParams(iterable)`] does not represent a `[name, represent a `[name, value]` tuple – that is, if an element is not iterable, or
value]` tuple – that is, if an element is not iterable, or does not consist of does not consist of exactly two elements.
exactly two elements.
<a id="ERR_INVALID_URL"></a> <a id="ERR_INVALID_URL"></a>
### ERR_INVALID_URL ### ERR_INVALID_URL
An error using the `'ERR_INVALID_URL'` code is thrown when an invalid URL is Used when an invalid URL is passed to the [WHATWG][WHATWG URL API]
passed to the [WHATWG][WHATWG URL API] [`URL` constructor][`new URL(input)`] to [`URL` constructor][`new URL(input)`] to be parsed. The thrown error object
be parsed. The thrown error object typically has an additional property typically has an additional property `'input'` that contains the URL that failed
`'input'` that contains the URL that failed to parse. to parse.
<a id="ERR_INVALID_URL_SCHEME"></a> <a id="ERR_INVALID_URL_SCHEME"></a>
### ERR_INVALID_URL_SCHEME ### ERR_INVALID_URL_SCHEME
The code `'ERR_INVALID_URL_SCHEME'` is used generically to signify an attempt Used generically to signify an attempt to use a URL of an incompatible scheme
to use a URL of an incompatible scheme (aka protocol) for a specific purpose. (aka protocol) for a specific purpose. It is currently only used in the
It is currently only used in the [WHATWG URL API][] support in the [`fs`][] [WHATWG URL API][] support in the [`fs`][] module (which only accepts URLs with
module (which only accepts URLs with `'file'` scheme), but may be used in other `'file'` scheme), but may be used in other Node.js APIs as well in the future.
Node.js APIs as well in the future.
<a id="ERR_IPC_CHANNEL_CLOSED"></a> <a id="ERR_IPC_CHANNEL_CLOSED"></a>
### ERR_IPC_CHANNEL_CLOSED ### ERR_IPC_CHANNEL_CLOSED
The `'ERR_IPC_CHANNEL_CLOSED'` error code is used when an attempt is made to use Used when an attempt is made to use an IPC communication channel that has
an IPC communication channel that has already been closed. already been closed.
<a id="ERR_IPC_DISCONNECTED"></a> <a id="ERR_IPC_DISCONNECTED"></a>
### ERR_IPC_DISCONNECTED ### ERR_IPC_DISCONNECTED
The `'ERR_IPC_DISCONNECTED'` error code is used when an attempt is made to Used when an attempt is made to disconnect an already disconnected IPC
disconnect an already disconnected IPC communication channel between two communication channel between two Node.js processes. See the documentation for
Node.js processes. See the documentation for the the [`child_process`](child_process.html) module for more information.
[`child_process`](child_process.html) module for more information.
<a id="ERR_IPC_ONE_PIPE"></a> <a id="ERR_IPC_ONE_PIPE"></a>
### ERR_IPC_ONE_PIPE ### ERR_IPC_ONE_PIPE
The `'ERR_IPC_ONE_PIPE'` error code is used when an attempt is made to create Used when an attempt is made to create a child Node.js process using more than
a child Node.js process using more than one IPC communication channel. one IPC communication channel. See the documentation for the
See the documentation for the [`child_process`](child_process.html) [`child_process`](child_process.html) module for more information.
module for more information.
<a id="ERR_IPC_SYNC_FORK"></a> <a id="ERR_IPC_SYNC_FORK"></a>
### ERR_IPC_SYNC_FORK ### ERR_IPC_SYNC_FORK
The `'ERR_IPC_SYNC_FORK'` error code is used when an attempt is made to open Used when an attempt is made to open an IPC communication channel with a
an IPC communication channel with a synchronous forked Node.js process. synchronous forked Node.js process. See the documentation for the
See the documentation for the [`child_process`](child_process.html) [`child_process`](child_process.html) module for more information.
module for more information.
<a id="ERR_MISSING_ARGS"></a> <a id="ERR_MISSING_ARGS"></a>
### ERR_MISSING_ARGS ### ERR_MISSING_ARGS
The `'ERR_MISSING_ARGS'` error code is a generic error code for instances where Used when a required argument of a Node.js API is not passed. This is currently
a required argument of a Node.js API is not passed. This is currently only used only used in the [WHATWG URL API][] for strict compliance with the specification
in the [WHATWG URL API][] for strict compliance with the specification (which (which in some cases may accept `func(undefined)` but not `func()`). In most
in some cases may accept `func(undefined)` but not `func()`). In most native native Node.js APIs, `func(undefined)` and `func()` are treated identically, and
Node.js APIs, `func(undefined)` and `func()` are treated identically, and the the [`ERR_INVALID_ARG_TYPE`][] error code may be used instead.
[`ERR_INVALID_ARG_TYPE`][] error code may be used instead.
<a id="ERR_SOCKET_ALREADY_BOUND"></a> <a id="ERR_SOCKET_ALREADY_BOUND"></a>
### ERR_SOCKET_ALREADY_BOUND ### ERR_SOCKET_ALREADY_BOUND
An error using the `'ERR_SOCKET_ALREADY_BOUND'` code is thrown when an attempt Used when an attempt is made to bind a socket that has already been bound.
is made to bind a socket that has already been bound.
<a id="ERR_SOCKET_BAD_PORT"></a> <a id="ERR_SOCKET_BAD_PORT"></a>
### ERR_SOCKET_BAD_PORT ### ERR_SOCKET_BAD_PORT
An error using the `'ERR_SOCKET_BAD_PORT'` code is thrown when an API Used when an API function expecting a port > 0 and < 65536 receives an invalid
function expecting a port > 0 and < 65536 receives an invalid value. value.
<a id="ERR_SOCKET_BAD_TYPE"></a> <a id="ERR_SOCKET_BAD_TYPE"></a>
### ERR_SOCKET_BAD_TYPE ### ERR_SOCKET_BAD_TYPE
An error using the `'ERR_SOCKET_BAD_TYPE'` code is thrown when an API Used when an API function expecting a socket type (`udp4` or `udp6`) receives an
function expecting a socket type (`udp4` or `udp6`) receives an invalid value. invalid value.
<a id="ERR_SOCKET_CANNOT_SEND"></a> <a id="ERR_SOCKET_CANNOT_SEND"></a>
### ERR_SOCKET_CANNOT_SEND ### ERR_SOCKET_CANNOT_SEND
An error using the `'ERR_SOCKET_CANNOT_SEND'` code is thrown when data Used when data cannot be sent on a socket.
cannot be sent on a socket.
<a id="ERR_SOCKET_DGRAM_NOT_RUNNING"></a> <a id="ERR_SOCKET_DGRAM_NOT_RUNNING"></a>
### ERR_SOCKET_DGRAM_NOT_RUNNING ### ERR_SOCKET_DGRAM_NOT_RUNNING
An error using the `'ERR_SOCKET_DGRAM_NOT_RUNNING'` code is thrown Used when a call is made and the UDP subsystem is not running.
when a call is made and the UDP subsystem is not running.
<a id="ERR_STDERR_CLOSE"></a> <a id="ERR_STDERR_CLOSE"></a>
### ERR_STDERR_CLOSE ### ERR_STDERR_CLOSE
An error using the `'ERR_STDERR_CLOSE'` code is thrown specifically when an Used when an attempt is made to close the `process.stderr` stream. By design,
attempt is made to close the `process.stderr` stream. By design, Node.js does Node.js does not allow `stdout` or `stderr` Streams to be closed by user code.
not allow `stdout` or `stderr` Streams to be closed by user code.
<a id="ERR_STDOUT_CLOSE"></a> <a id="ERR_STDOUT_CLOSE"></a>
### ERR_STDOUT_CLOSE ### ERR_STDOUT_CLOSE
An error using the `'ERR_STDOUT_CLOSE'` code is thrown specifically when an Used when an attempt is made to close the `process.stdout` stream. By design,
attempt is made to close the `process.stdout` stream. By design, Node.js does Node.js does not allow `stdout` or `stderr` Streams to be closed by user code.
not allow `stdout` or `stderr` Streams to be closed by user code.
<a id="ERR_UNKNOWN_BUILTIN_MODULE"></a> <a id="ERR_UNKNOWN_BUILTIN_MODULE"></a>
### ERR_UNKNOWN_BUILTIN_MODULE ### ERR_UNKNOWN_BUILTIN_MODULE
The `'ERR_UNKNOWN_BUILTIN_MODULE'` error code is used to identify a specific Used to identify a specific kind of internal Node.js error that should not
kind of internal Node.js error that should not typically be triggered by user typically be triggered by user code. Instances of this error point to an
code. Instances of this error point to an internal bug within the Node.js internal bug within the Node.js binary itself.
binary itself.
<a id="ERR_UNKNOWN_SIGNAL"></a> <a id="ERR_UNKNOWN_SIGNAL"></a>
### ERR_UNKNOWN_SIGNAL ### ERR_UNKNOWN_SIGNAL
The `'ERR_UNKNOWN_SIGNAL`' error code is used when an invalid or unknown Used when an invalid or unknown process signal is passed to an API expecting a
process signal is passed to an API expecting a valid signal (such as valid signal (such as [`child.kill()`][]).
[`child.kill()`][]).
<a id="ERR_UNKNOWN_STDIN_TYPE"></a> <a id="ERR_UNKNOWN_STDIN_TYPE"></a>
### ERR_UNKNOWN_STDIN_TYPE ### ERR_UNKNOWN_STDIN_TYPE
An error using the `'ERR_UNKNOWN_STDIN_TYPE'` code is thrown specifically when Used when an attempt is made to launch a Node.js process with an unknown `stdin`
an attempt is made to launch a Node.js process with an unknown `stdin` file file type. Errors of this kind cannot *typically* be caused by errors in user
type. Errors of this kind cannot *typically* be caused by errors in user code, code, although it is not impossible. Occurrences of this error are most likely
although it is not impossible. Occurrences of this error are most likely an an indication of a bug within Node.js itself.
indication of a bug within Node.js itself.
<a id="ERR_UNKNOWN_STREAM_TYPE"></a> <a id="ERR_UNKNOWN_STREAM_TYPE"></a>
### ERR_UNKNOWN_STREAM_TYPE ### ERR_UNKNOWN_STREAM_TYPE
An error using the `'ERR_UNKNOWN_STREAM_TYPE'` code is thrown specifically when Used when an attempt is made to launch a Node.js process with an unknown
an attempt is made to launch a Node.js process with an unknown `stdout` or `stdout` or `stderr` file type. Errors of this kind cannot *typically* be caused
`stderr` file type. Errors of this kind cannot *typically* be caused by errors by errors in user code, although it is not impossible. Occurrences of this error
in user code, although it is not impossible. Occurrences of this error are most are most likely an indication of a bug within Node.js itself.
likely an indication of a bug within Node.js itself.
[`ERR_INVALID_ARG_TYPE`]: #ERR_INVALID_ARG_TYPE [`ERR_INVALID_ARG_TYPE`]: #ERR_INVALID_ARG_TYPE

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