| // ==UserScript== | |
| // @name Abema 区域限制 | |
| // @version 1.0.0 | |
| // @run-at document-end | |
| // @namespace Violentmonkey Scripts | |
| // @match https://abema.tv/* | |
| // @grant none | |
| // ==/UserScript== | |
| Object.defineProperty(__CLIENT_REGION__, 'isAllowed', { | |
| get: () => true |
All of the below properties or methods, when requested/called in JavaScript, will trigger the browser to synchronously calculate the style and layout*. This is also called reflow or layout thrashing, and is common performance bottleneck.
Generally, all APIs that synchronously provide layout metrics will trigger forced reflow / layout. Read on for additional cases and details.
elem.offsetLeft, elem.offsetTop, elem.offsetWidth, elem.offsetHeight, elem.offsetParent
| i386 : iPhone Simulator | |
| x86_64 : iPhone Simulator | |
| arm64 : iPhone Simulator | |
| iPhone1,1 : iPhone | |
| iPhone1,2 : iPhone 3G | |
| iPhone2,1 : iPhone 3GS | |
| iPhone3,1 : iPhone 4 | |
| iPhone3,2 : iPhone 4 GSM Rev A | |
| iPhone3,3 : iPhone 4 CDMA | |
| iPhone4,1 : iPhone 4S |
| Latency Comparison Numbers (~2012) | |
| ---------------------------------- | |
| L1 cache reference 0.5 ns | |
| Branch mispredict 5 ns | |
| L2 cache reference 7 ns 14x L1 cache | |
| Mutex lock/unlock 25 ns | |
| Main memory reference 100 ns 20x L2 cache, 200x L1 cache | |
| Compress 1K bytes with Zippy 3,000 ns 3 us | |
| Send 1K bytes over 1 Gbps network 10,000 ns 10 us | |
| Read 4K randomly from SSD* 150,000 ns 150 us ~1GB/sec SSD |
| // http://paulirish.com/2011/requestanimationframe-for-smart-animating/ | |
| // http://my.opera.com/emoller/blog/2011/12/20/requestanimationframe-for-smart-er-animating | |
| // requestAnimationFrame polyfill by Erik Möller. fixes from Paul Irish and Tino Zijdel | |
| // MIT license | |
| (function() { | |
| var lastTime = 0; | |
| var vendors = ['ms', 'moz', 'webkit', 'o']; |