paulirish

What forces layout / reflow

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.

Element APIs

Getting box metrics

• elem.offsetLeft, elem.offsetTop, elem.offsetWidth, elem.offsetHeight, elem.offsetParent

danackerson

# using such a setup requires `apt-get install lua-nginx-redis` under Ubuntu Trusty
# more info @ http://wiki.nginx.org/HttpLuaModule#access_by_lua

http {
  lua_package_path "/etc/nginx/include.d/?.lua;;";
  lua_socket_pool_size 100;
  lua_socket_connect_timeout 10ms;
  lua_socket_read_timeout 10ms;
  
  server {

digitaljhelms

Branching

Quick Legend

Description, Instructions, Notes

Instance	Branch