mirror of
https://github.com/JasonYANG170/IOTConnect-Web.git
synced 2024-11-23 20:26:28 +00:00
119 lines
3.2 KiB
Markdown
119 lines
3.2 KiB
Markdown
# 3.3.0
|
|
|
|
- Support EventTarget emitters in `events.once` from Node.js 12.11.0.
|
|
|
|
Now you can use the `events.once` function with objects that implement the EventTarget interface. This interface is used widely in
|
|
the DOM and other web APIs.
|
|
|
|
```js
|
|
var events = require('events');
|
|
var assert = require('assert');
|
|
|
|
async function connect() {
|
|
var ws = new WebSocket('wss://example.com');
|
|
await events.once(ws, 'open');
|
|
assert(ws.readyState === WebSocket.OPEN);
|
|
}
|
|
|
|
async function onClick() {
|
|
await events.once(document.body, 'click');
|
|
alert('you clicked the page!');
|
|
}
|
|
```
|
|
|
|
# 3.2.0
|
|
|
|
- Add `events.once` from Node.js 11.13.0.
|
|
|
|
To use this function, Promises must be supported in the environment. Use a polyfill like `es6-promise` if you support older browsers.
|
|
|
|
# 3.1.0 (2020-01-08)
|
|
|
|
`events` now matches the Node.js 11.12.0 API.
|
|
|
|
- pass through return value in wrapped `emitter.once()` listeners
|
|
|
|
Now, this works:
|
|
```js
|
|
emitter.once('myevent', function () { return 1; });
|
|
var listener = emitter.rawListeners('myevent')[0]
|
|
assert(listener() === 1);
|
|
```
|
|
Previously, `listener()` would return undefined regardless of the implementation.
|
|
|
|
Ported from https://github.com/nodejs/node/commit/acc506c2d2771dab8d7bba6d3452bc5180dff7cf
|
|
|
|
- Reduce code duplication in listener type check ([#67](https://github.com/Gozala/events/pull/67) by [@friederbluemle](https://github.com/friederbluemle)).
|
|
- Improve `emitter.once()` performance in some engines
|
|
|
|
# 3.0.0 (2018-05-25)
|
|
|
|
**This version drops support for IE8.** `events` no longer includes polyfills
|
|
for ES5 features. If you need to support older environments, use an ES5 shim
|
|
like [es5-shim](https://npmjs.com/package/es5-shim). Both the shim and sham
|
|
versions of es5-shim are necessary.
|
|
|
|
- Update to events code from Node.js 10.x
|
|
- (semver major) Adds `off()` method
|
|
- Port more tests from Node.js
|
|
- Switch browser tests to airtap, making things more reliable
|
|
|
|
# 2.1.0 (2018-05-25)
|
|
|
|
- add Emitter#rawListeners from Node.js v9.4
|
|
|
|
# 2.0.0 (2018-02-02)
|
|
|
|
- Update to events code from node.js 8.x
|
|
- Adds `prependListener()` and `prependOnceListener()`
|
|
- Adds `eventNames()` method
|
|
- (semver major) Unwrap `once()` listeners in `listeners()`
|
|
- copy tests from node.js
|
|
|
|
Note that this version doubles the gzipped size, jumping from 1.1KB to 2.1KB,
|
|
due to new methods and runtime performance improvements. Be aware of that when
|
|
upgrading.
|
|
|
|
# 1.1.1 (2016-06-22)
|
|
|
|
- add more context to errors if they are not instanceof Error
|
|
|
|
# 1.1.0 (2015-09-29)
|
|
|
|
- add Emitter#listerCount (to match node v4 api)
|
|
|
|
# 1.0.2 (2014-08-28)
|
|
|
|
- remove un-reachable code
|
|
- update devDeps
|
|
|
|
## 1.0.1 / 2014-05-11
|
|
|
|
- check for console.trace before using it
|
|
|
|
## 1.0.0 / 2013-12-10
|
|
|
|
- Update to latest events code from node.js 0.10
|
|
- copy tests from node.js
|
|
|
|
## 0.4.0 / 2011-07-03 ##
|
|
|
|
- Switching to graphquire@0.8.0
|
|
|
|
## 0.3.0 / 2011-07-03 ##
|
|
|
|
- Switching to URL based module require.
|
|
|
|
## 0.2.0 / 2011-06-10 ##
|
|
|
|
- Simplified package structure.
|
|
- Graphquire for dependency management.
|
|
|
|
## 0.1.1 / 2011-05-16 ##
|
|
|
|
- Unhandled errors are logged via console.error
|
|
|
|
## 0.1.0 / 2011-04-22 ##
|
|
|
|
- Initial release
|