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raf-pool\nrequestAnimationFrame pool to avoid busyness on the thread\n\n![Download count all time](https://img.shields.io/npm/dt/raf-pool.svg)\n[![npm version](https://badge.fury.io/js/raf-pool.svg)](http://badge.fury.io/js/raf-pool)\n\n[![Dependency Status](https://david-dm.org/snewcomer/raf-pool.svg)](https://david-dm.org/snewcomer/raf-pool)\n[![devDependency Status](https://david-dm.org/snewcomer/raf-pool/dev-status.svg)](https://david-dm.org/snewcomer/raf-pool#info=devDependencies)\n\nWhy use an administrator to manage all the elements on my page?\n------------------------------------------------------------------------------\nThis library is used in [ember-in-viewport](https://github.com/DockYard/ember-in-viewport) and [ember-infinity](https://github.com/ember-infinity/ember-infinity).\n\nwindow.requestAnimationFrame schedules and performs an animation before the next repaint, thus taking the guesswork out of being in sync with the user's browser readiness.  It will perform the callback function 60 times per second, thus making the main thread quite busy.  If you have hundreds of images on the page, it can be very painful on memory when you have hundreds of recurring handles on `requestAnimationFrame`.  This small library can dramatically reduce memory usage as it uses a single requestAnimationFrame.\n\nWhile observing 20 images on a page:\n\n### Normal\n\u003cimg src=\"https://i.imgur.com/TLAHxnB.png\" /\u003e\n\n### With raf-pool\n\u003cimg src=\"https://i.imgur.com/VNK4y90.png\" /\u003e\n\nInstallation\n------------------------------------------------------------------------------\n\n```\nnpm install raf-pool --save\n```\n\nUsage\n------------------------------------------------------------------------------\n## API\n\n1. elementId: DOM Node identifier\n2. callbackFn\n    - callback function to perform logic in your own application\n    - Note, your callback function should `add` back the method to the raf-pool service.\n\n```js\nimport RafPool from 'raf-pool';\n\nconst rafPool = new RafPool();\n\nconst callback = () =\u003e {\n  rafPool.add(element.id, callback);\n};\n\ncallback();\n```\n\n### Methods\n\n```js\n// add an element to static administrator\nrafPool.add(element.id, callback);\n\n// Use in cleanup lifecycle hooks (if applicable) from the element being observed\nrafPool.remove(element.id);\n\n// Use in cleanup lifecycle hooks of your application as a whole\n// This will remove the in memory data store holding onto all of the observers\nrafPool.reset();\n","funding_links":[],"categories":[],"sub_categories":[],"project_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fsnewcomer%2Fraf-pool","html_url":"https://awesome.ecosyste.ms/projects/github.com%2Fsnewcomer%2Fraf-pool","lists_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fsnewcomer%2Fraf-pool/lists"}