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doc: add more missing backticks
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Also, fix some other nits in passing
(formatting, punctuation, typos, redundancy, obsoleteness).

PR-URL: #20438
Reviewed-By: Luigi Pinca <[email protected]>
Reviewed-By: Trivikram Kamat <[email protected]>
Reviewed-By: Colin Ihrig <[email protected]>
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vsemozhetbyt authored and MylesBorins committed May 8, 2018
1 parent ad793ab commit 56c27c6
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12 changes: 6 additions & 6 deletions doc/api/addons.md
Original file line number Diff line number Diff line change
Expand Up @@ -9,7 +9,7 @@ just as if they were an ordinary Node.js module. They are used primarily to
provide an interface between JavaScript running in Node.js and C/C++ libraries.

At the moment, the method for implementing Addons is rather complicated,
involving knowledge of several components and APIs :
involving knowledge of several components and APIs:

- V8: the C++ library Node.js currently uses to provide the
JavaScript implementation. V8 provides the mechanisms for creating objects,
Expand Down Expand Up @@ -93,7 +93,7 @@ There is no semi-colon after `NODE_MODULE` as it's not a function (see
`node.h`).

The `module_name` must match the filename of the final binary (excluding
the .node suffix).
the `.node` suffix).

In the `hello.cc` example, then, the initialization function is `init` and the
Addon module name is `addon`.
Expand Down Expand Up @@ -1085,9 +1085,9 @@ console.log(result);

### AtExit hooks

An "AtExit" hook is a function that is invoked after the Node.js event loop
An `AtExit` hook is a function that is invoked after the Node.js event loop
has ended but before the JavaScript VM is terminated and Node.js shuts down.
"AtExit" hooks are registered using the `node::AtExit` API.
`AtExit` hooks are registered using the `node::AtExit` API.

#### void AtExit(callback, args)

Expand All @@ -1099,12 +1099,12 @@ has ended but before the JavaScript VM is terminated and Node.js shuts down.
Registers exit hooks that run after the event loop has ended but before the VM
is killed.

AtExit takes two parameters: a pointer to a callback function to run at exit,
`AtExit` takes two parameters: a pointer to a callback function to run at exit,
and a pointer to untyped context data to be passed to that callback.

Callbacks are run in last-in first-out order.

The following `addon.cc` implements AtExit:
The following `addon.cc` implements `AtExit`:

```cpp
// addon.cc
Expand Down
51 changes: 26 additions & 25 deletions doc/api/assert.md
Original file line number Diff line number Diff line change
Expand Up @@ -165,10 +165,10 @@ added: v0.1.21
changes:
- version: v9.0.0
pr-url: https://github.com/nodejs/node/pull/15001
description: Error names and messages are now properly compared
description: The `Error` names and messages are now properly compared
- version: v8.0.0
pr-url: https://github.com/nodejs/node/pull/12142
description: Set and Map content is also compared
description: The `Set` and `Map` content is also compared
- version: v6.4.0, v4.7.1
pr-url: https://github.com/nodejs/node/pull/8002
description: Typed array slices are handled correctly now.
Expand Down Expand Up @@ -208,7 +208,7 @@ the [`RegExp`][] object are not enumerable:
assert.deepEqual(/a/gi, new Date());
```

An exception is made for [`Map`][] and [`Set`][]. Maps and Sets have their
An exception is made for [`Map`][] and [`Set`][]. `Map`s and `Set`s have their
contained items compared too, as expected.

"Deep" equality means that the enumerable "own" properties of child objects
Expand Down Expand Up @@ -264,15 +264,15 @@ changes:
description: Enumerable symbol properties are now compared.
- version: v9.0.0
pr-url: https://github.com/nodejs/node/pull/15036
description: NaN is now compared using the
description: The `NaN` is now compared using the
[SameValueZero](https://tc39.github.io/ecma262/#sec-samevaluezero)
comparison.
- version: v8.5.0
pr-url: https://github.com/nodejs/node/pull/15001
description: Error names and messages are now properly compared
description: The `Error` names and messages are now properly compared
- version: v8.0.0
pr-url: https://github.com/nodejs/node/pull/12142
description: Set and Map content is also compared
description: The `Set` and `Map` content is also compared
- version: v6.4.0, v4.7.1
pr-url: https://github.com/nodejs/node/pull/8002
description: Typed array slices are handled correctly now.
Expand Down Expand Up @@ -303,8 +303,8 @@ are recursively evaluated also by the following rules.
enumerable properties.
* Enumerable own [`Symbol`][] properties are compared as well.
* [Object wrappers][] are compared both as objects and unwrapped values.
* Object properties are compared unordered.
* Map keys and Set items are compared unordered.
* `Object` properties are compared unordered.
* `Map` keys and `Set` items are compared unordered.
* Recursion stops when both sides differ or both sides encounter a circular
reference.
* [`WeakMap`][] and [`WeakSet`][] comparison does not rely on their values. See
Expand Down Expand Up @@ -413,10 +413,10 @@ function and awaits the returned promise to complete. It will then check that
the promise is not rejected.

If `block` is a function and it throws an error synchronously,
`assert.doesNotReject()` will return a rejected Promise with that error. If the
function does not return a promise, `assert.doesNotReject()` will return a
rejected Promise with an [`ERR_INVALID_RETURN_VALUE`][] error. In both cases the
error handler is skipped.
`assert.doesNotReject()` will return a rejected `Promise` with that error. If
the function does not return a promise, `assert.doesNotReject()` will return a
rejected `Promise` with an [`ERR_INVALID_RETURN_VALUE`][] error. In both cases
the error handler is skipped.

Please note: Using `assert.doesNotReject()` is actually not useful because there
is little benefit by catching a rejection and then rejecting it again. Instead,
Expand Down Expand Up @@ -494,7 +494,7 @@ assert.doesNotThrow(
```

However, the following will result in an `AssertionError` with the message
'Got unwanted exception (TypeError)..':
'Got unwanted exception...':

<!-- eslint-disable no-restricted-syntax -->
```js
Expand All @@ -519,7 +519,7 @@ assert.doesNotThrow(
/Wrong value/,
'Whoops'
);
// Throws: AssertionError: Got unwanted exception (TypeError). Whoops
// Throws: AssertionError: Got unwanted exception: Whoops
```

## assert.equal(actual, expected[, message])
Expand Down Expand Up @@ -656,7 +656,7 @@ changes:
- version: v10.0.0
pr-url: https://github.com/nodejs/node/pull/18247
description: Instead of throwing the original error it is now wrapped into
a AssertionError that contains the full stack trace.
an `AssertionError` that contains the full stack trace.
- version: v10.0.0
pr-url: https://github.com/nodejs/node/pull/18247
description: Value may now only be `undefined` or `null`. Before any truthy
Expand Down Expand Up @@ -701,10 +701,10 @@ added: v0.1.21
changes:
- version: v9.0.0
pr-url: https://github.com/nodejs/node/pull/15001
description: Error names and messages are now properly compared
description: The `Error` names and messages are now properly compared
- version: v8.0.0
pr-url: https://github.com/nodejs/node/pull/12142
description: Set and Map content is also compared
description: The `Set` and `Map` content is also compared
- version: v6.4.0, v4.7.1
pr-url: https://github.com/nodejs/node/pull/8002
description: Typed array slices are handled correctly now.
Expand Down Expand Up @@ -774,18 +774,18 @@ added: v1.2.0
changes:
- version: v9.0.0
pr-url: https://github.com/nodejs/node/pull/15398
description: -0 and +0 are not considered equal anymore.
description: The `-0` and `+0` are not considered equal anymore.
- version: v9.0.0
pr-url: https://github.com/nodejs/node/pull/15036
description: NaN is now compared using the
description: The `NaN` is now compared using the
[SameValueZero](https://tc39.github.io/ecma262/#sec-samevaluezero)
comparison.
- version: v9.0.0
pr-url: https://github.com/nodejs/node/pull/15001
description: Error names and messages are now properly compared
description: The `Error` names and messages are now properly compared
- version: v8.0.0
pr-url: https://github.com/nodejs/node/pull/12142
description: Set and Map content is also compared
description: The `Set` and `Map` content is also compared
- version: v6.4.0, v4.7.1
pr-url: https://github.com/nodejs/node/pull/8002
description: Typed array slices are handled correctly now.
Expand Down Expand Up @@ -893,7 +893,8 @@ added: v0.1.21
changes:
- version: v10.0.0
pr-url: https://github.com/nodejs/node/pull/18319
description: assert.ok() (no arguments) will now use a predefined error msg.
description: The `assert.ok()` (no arguments) will now use a predefined
error message.
-->
* `value` {any}
* `message` {any}
Expand All @@ -907,7 +908,7 @@ parameter is `undefined`, a default error message is assigned. If the `message`
parameter is an instance of an [`Error`][] then it will be thrown instead of the
`AssertionError`.
If no arguments are passed in at all `message` will be set to the string:
"No value argument passed to assert.ok".
``'No value argument passed to `assert.ok()`'``.

Be aware that in the `repl` the error message will be different to the one
thrown in a file! See below for further details.
Expand Down Expand Up @@ -966,9 +967,9 @@ function and awaits the returned promise to complete. It will then check that
the promise is rejected.

If `block` is a function and it throws an error synchronously,
`assert.rejects()` will return a rejected Promise with that error. If the
`assert.rejects()` will return a rejected `Promise` with that error. If the
function does not return a promise, `assert.rejects()` will return a rejected
Promise with an [`ERR_INVALID_RETURN_VALUE`][] error. In both cases the error
`Promise` with an [`ERR_INVALID_RETURN_VALUE`][] error. In both cases the error
handler is skipped.

Besides the async nature to await the completion behaves identically to
Expand Down
48 changes: 25 additions & 23 deletions doc/api/async_hooks.md
Original file line number Diff line number Diff line change
Expand Up @@ -17,8 +17,8 @@ const async_hooks = require('async_hooks');
An asynchronous resource represents an object with an associated callback.
This callback may be called multiple times, for example, the `'connection'`
event in `net.createServer()`, or just a single time like in `fs.open()`.
A resource can also be closed before the callback is called. AsyncHook does not
explicitly distinguish between these different cases but will represent them
A resource can also be closed before the callback is called. `AsyncHook` does
not explicitly distinguish between these different cases but will represent them
as the abstract concept that is a resource.

## Public API
Expand Down Expand Up @@ -188,7 +188,7 @@ const hook = async_hooks.createHook(callbacks).enable();
* Returns: {AsyncHook} A reference to `asyncHook`.

Disable the callbacks for a given `AsyncHook` instance from the global pool of
AsyncHook callbacks to be executed. Once a hook has been disabled it will not
`AsyncHook` callbacks to be executed. Once a hook has been disabled it will not
be called again until enabled.

For API consistency `disable()` also returns the `AsyncHook` instance.
Expand Down Expand Up @@ -299,10 +299,10 @@ and document their own resource objects. For example, such a resource object
could contain the SQL query being executed.

In the case of Promises, the `resource` object will have `promise` property
that refers to the Promise that is being initialized, and a `isChainedPromise`
property, set to `true` if the promise has a parent promise, and `false`
otherwise. For example, in the case of `b = a.then(handler)`, `a` is considered
a parent Promise of `b`. Here, `b` is considered a chained promise.
that refers to the `Promise` that is being initialized, and an
`isChainedPromise` property, set to `true` if the promise has a parent promise,
and `false` otherwise. For example, in the case of `b = a.then(handler)`, `a` is
considered a parent `Promise` of `b`. Here, `b` is considered a chained promise.

In some cases the resource object is reused for performance reasons, it is
thus not safe to use it as a key in a `WeakMap` or add properties to it.
Expand Down Expand Up @@ -466,7 +466,7 @@ added: v8.1.0
changes:
- version: v8.2.0
pr-url: https://github.com/nodejs/node/pull/13490
description: Renamed from currentId
description: Renamed from `currentId`
-->

* Returns: {number} The `asyncId` of the current execution context. Useful to
Expand Down Expand Up @@ -498,7 +498,7 @@ const server = net.createServer(function onConnection(conn) {
});
```

Note that promise contexts may not get precise executionAsyncIds by default.
Note that promise contexts may not get precise `executionAsyncIds` by default.
See the section on [promise execution tracking][].

#### async_hooks.triggerAsyncId()
Expand All @@ -521,12 +521,12 @@ const server = net.createServer((conn) => {
});
```

Note that promise contexts may not get valid triggerAsyncIds by default. See
Note that promise contexts may not get valid `triggerAsyncId`s by default. See
the section on [promise execution tracking][].

## Promise execution tracking

By default, promise executions are not assigned asyncIds due to the relatively
By default, promise executions are not assigned `asyncId`s due to the relatively
expensive nature of the [promise introspection API][PromiseHooks] provided by
V8. This means that programs using promises or `async`/`await` will not get
correct execution and trigger ids for promise callback contexts by default.
Expand All @@ -542,10 +542,10 @@ Promise.resolve(1729).then(() => {
// eid 1 tid 0
```

Observe that the `then` callback claims to have executed in the context of the
Observe that the `then()` callback claims to have executed in the context of the
outer scope even though there was an asynchronous hop involved. Also note that
the triggerAsyncId value is 0, which means that we are missing context about the
resource that caused (triggered) the `then` callback to be executed.
the `triggerAsyncId` value is `0`, which means that we are missing context about
the resource that caused (triggered) the `then()` callback to be executed.

Installing async hooks via `async_hooks.createHook` enables promise execution
tracking. Example:
Expand All @@ -562,15 +562,16 @@ Promise.resolve(1729).then(() => {

In this example, adding any actual hook function enabled the tracking of
promises. There are two promises in the example above; the promise created by
`Promise.resolve()` and the promise returned by the call to `then`. In the
example above, the first promise got the asyncId 6 and the latter got asyncId 7.
During the execution of the `then` callback, we are executing in the context of
promise with asyncId 7. This promise was triggered by async resource 6.
`Promise.resolve()` and the promise returned by the call to `then()`. In the
example above, the first promise got the `asyncId` `6` and the latter got
`asyncId` `7`. During the execution of the `then()` callback, we are executing
in the context of promise with `asyncId` `7`. This promise was triggered by
async resource `6`.

Another subtlety with promises is that `before` and `after` callbacks are run
only on chained promises. That means promises not created by `then`/`catch` will
not have the `before` and `after` callbacks fired on them. For more details see
the details of the V8 [PromiseHooks][] API.
only on chained promises. That means promises not created by `then()`/`catch()`
will not have the `before` and `after` callbacks fired on them. For more details
see the details of the V8 [PromiseHooks][] API.

## JavaScript Embedder API

Expand Down Expand Up @@ -632,8 +633,9 @@ asyncResource.emitAfter();
async event. **Default:** `executionAsyncId()`.
* `requireManualDestroy` {boolean} Disables automatic `emitDestroy` when the
object is garbage collected. This usually does not need to be set (even if
`emitDestroy` is called manually), unless the resource's asyncId is retrieved
and the sensitive API's `emitDestroy` is called with it. **Default:** `false`.
`emitDestroy` is called manually), unless the resource's `asyncId` is
retrieved and the sensitive API's `emitDestroy` is called with it.
**Default:** `false`.

Example usage:

Expand Down
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