WebAssembly

Download

$ git clone https://github.com/juj/emsdk.git
$ cd emsdk
$ ./emsdk install latest
$ ./emsdk activate latest

source
$ source ./emsdk_env.sh --build=Release

compile
emcc hello.c -s WASM=1 -o hello.html

$mv hello.html /var/www/html/.

open it in your browser.

前端編輯器

jsbin

codepen.io

無邊界的button css樣式

.button1 {
   border:1px #ffffff solid;
   background-color: #ffffff ;
}

Latex 安裝在ubuntu上

安裝

sudo apt-get install texlive-full

sudo apt-get install texmaker

編譯成pdf

pdflatex filename.lex

phpmyadmin 登入頁面出現很多echo

sudo apt install php libapache2-mod-php

之前必須安裝apache2 

apache restart fail

AH00557: apache2: apr_sockaddr_info_get() failed for excellentjay-Satellite-L750
AH00558: apache2: Could not reliably determine the server's fully qualified domain name, using 127.0.0.1. Set the 'ServerName' directive globally to suppress this message

add the following line in /etc/apache2/apache2.conf 

ServerName localhost

Chrome WebGL

1. chrome://flags

2.覆寫軟體轉譯清單 Mac, Windows, Linux, Chrome OS, Android
覆寫內建的軟體轉譯清單，並針對不受支援的系統設定啟用 GPU 加速處理功能。 #ignore-gpu-blacklist

3.testing

chrome://gpu

Graphics Feature Status

• Canvas: Software only. Hardware acceleration disabled
• Flash: Hardware accelerated
• Flash Stage3D: Hardware accelerated
• Flash Stage3D Baseline profile: Hardware accelerated
• Compositing: Hardware accelerated
• Multiple Raster Threads: Enabled
• Rasterization: Software only. Hardware acceleration disabled
• Video Decode: Hardware accelerated
• Video Encode: Hardware accelerated
• WebGL: Hardware accelerated