/proc/thread-self/root/var/runtime/node_modules/@aws-sdk/node_modules/events
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# 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 polyfillsfor ES5 features. If you need to support older environments, use an ES5 shimlike [es5-shim](https://npmjs.com/package/es5-shim). Both the shim and shamversions 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 whenupgrading. # 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