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JSX
JSX is just syntax sugar for some React JavaScript API. For example, the following JSX code ...
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Scores
We use CodeSandbox for this interactive session.
JSX is just syntax sugar for some React JavaScript API. For example, the following JSX code ...
<DashboardUnit data-index="2">
Scores
ActionScript: source.actionscript.2 | |
AppleScript: source.applescript | |
ASP: source.asp | |
Batch FIle: source.dosbatch | |
C#: source.cs | |
C++: source.c++ | |
Clojure: source.clojure | |
CSS: source.css | |
D: source.d | |
Diff: source.diff |
本文主要介绍如何从计算机体系结构的角度,利用计算机系统的硬件特点来优化软件代码。本文采用C语言进行样例的描述,但是在大多数其他的编程语言中也能够适用。
首先,我们将阐述为何需要从计算机体系结构的角度进行程序优化。接着,我们抽象出了从计算机体系结构的角度分析性能问题的模式。然后,我们将了解几种被广泛应用在各种体系结构上的,基于体系结构的程序性能优化方式,并将改进前后的性能进行对比。最后,我们将综合所有在文中谈到的程序性能优化方式,一同探讨如何进行进一步的优化。
尽管本文主要阐述程序性能优化,但是我们还是必须首先支出,编写程序的主要目标就是编写出可用的程序,而非高效的程序。我们所做的一切优化,都应该是在写出正确、可交付的程序的基础上。也就是说,可用性是程序性能优化的地基。
在建立好地基后,我们就可以思考让我们的程序运行得更加快速。一般而言,程序性能优化有两个大方向:
def sign_in(user_credential, role): | |
"""Sign in an user. | |
:param user_credential: User's credential | |
:param role: | |
""" | |
angular.module('App').config(function (RestangularProvider) { | |
// convert json request to x-www-form-urlencoded request | |
RestangularProvider.setFullRequestInterceptor(function (el, op, what, url) { | |
if (op === "put" || op === "post") { | |
var res = ""; | |
_.forOwn(el, function (v, k) { | |
if (!_.isFunction(v)) { | |
res += k + "=" + encodeURIComponent(v) + "&"; |
sudo add-apt-repository ppa:webupd8team/java -y | |
sudo apt-get update | |
sudo apt-get install -y oracle-java8-installer | |
sudo apt-get install -y oracle-java8-set-default | |
sudo apt-key adv --keyserver keyserver.ubuntu.com --recv E56151BF | |
DISTRO=$(lsb_release -is | tr '[:upper:]' '[:lower:]') | |
CODENAME=$(lsb_release -cs) | |
echo "deb http://repos.mesosphere.io/${DISTRO} ${CODENAME} main" | sudo tee /etc/apt/sources.list.d/mesosphere.list | |
sudo apt-get -y update | |
sudo apt-get install -y mesosphere |
// needs async library support | |
var | |
async = require('async'); | |
(function lifeCycle(){ | |
var | |
workflow = { | |
body : [], | |
end : function() {}, | |
util : {}, |
{ | |
init: function(elevators, floors) { | |
function Tour (pickupRequest, direction, startFloorNum) { | |
this.pickingUp = !!pickupRequest; | |
this.pickupRequest = pickupRequest; | |
this.direction = direction; // either 'up' or 'down' | |
this.startFloorNum = startFloorNum; | |
} | |
function Controller (elevator) { |
{ | |
init: function(elevators, floors) { | |
function Controller (elevator) { | |
var currentController = this; | |
this.elevator = elevator; | |
elevator.on('floor_button_pressed', function (floorNum) { | |
currentController.goToFloor(floorNum); | |
}); | |
} |
Get Homebrew installed on your mac if you don't already have it
Install highlight. "brew install highlight". (This brings down Lua and Boost as well)