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kickdesk

Stop Gratuitous UI Animation - Medium - 2 views

medium.com/...tous-ui-animation-9ece9aa9eb97

UX UI

shared by kickdesk on 21 Jan 17 - Cached
  • kickdesk on 21 Jan 17
     
    少用不必要的UI動畫：文中有一段改良範例
crazylion lee

AvaloniaUI/Avalonia: A multi-platform .NET UI framework (formerly known as Perspex) - 0 views

github.com/Avalonia

.NET ui framework

shared by crazylion lee on 20 Nov 16 - No Cached
  • crazylion lee on 20 Nov 16
     
    "A multi-platform .NET UI framework (formerly known as Perspex)"
張 旭

New UI Pattern: Website Loading Bars · UsabilityPost - 0 views

www.usabilitypost.com/...i-pattern-website-loading-bars

loading UI ajax youtube animation bar

shared by 張 旭 on 09 Sep 13 - No Cached
  • 張 旭 on 09 Sep 13
     
    "the reason to use the bar is because you're switching content via JavaScript rather than loading a new page. This makes sense since the browser's own loading indicator may not get triggered. "
crazylion lee

zoofIO/flexx - 0 views

github.com/flexx

gui ui python

shared by crazylion lee on 08 Sep 15 - No Cached
  • crazylion lee on 08 Sep 15
     
    "Python UI tookit based on web technology http://flexx.readthedocs.org"
張 旭

DNS - FreeIPA - 0 views

www.freeipa.org/DNS

dns networking system bind freeipa

shared by 張 旭 on 30 Aug 19 - No Cached
  • FreeIPA DNS integration allows administrator to manage and serve DNS records in a domain using the same CLI or Web UI as when managing identities and policies.
  • Single-master DNS is error prone, especially for inexperienced admins.
  • a decent Kerberos experience.
  • ...14 more annotations...
  • Goal is NOT to provide general-purpose DNS server.
  • DNS component in FreeIPA is optional and user may choose to manage all DNS records manually in other third party DNS server.
  • Clients can be configured to automatically run DNS updates (nsupdate) when their IP address changes and thus keeping its DNS record up-to-date. DNS zones can be configured to synchronize client's reverse (PTR) record along with the forward (A, AAAA) DNS record.
  • It is extremely hard to change DNS domain in existing installations so it is better to think ahead.
  • You should only use names which are delegated to you by the parent domain.
  • Not respecting this rule will cause problems sooner or later!
  • DNSSEC validation.
  • For internal names you can use arbitrary sub-domain in a DNS sub-tree you own, e.g. int.example.com.. Always respect rules from the previous section.
  • General advice about DNS views is do not use them because views make DNS deployment harder to maintain and security benefits are questionable (when compared with ACL).
  • The DNS integration is based on the bind-dyndb-ldap project, which enhances BIND name server to be able to use FreeIPA server LDAP instance as a data backend (data are stored in cn=dns entry, using schema defined by bind-dyndb-ldap
  • FreeIPA LDAP directory information tree is by default accessible to any user in the network
  • As DNS data are often considered as sensitive and as having access to cn=dns tree would be basically equal to being able to run zone transfer to all FreeIPA managed DNS zones, contents of this tree in LDAP are hidden by default.
  • standard system log (/var/log/messages or system journal)
  • BIND configuration (/etc/named.conf) can be updated to produce a more detailed log.
  • 張 旭 on 30 Aug 19
     
    "FreeIPA DNS integration allows administrator to manage and serve DNS records in a domain using the same CLI or Web UI as when managing identities and policies."
張 旭

也许，DOM 不是答案 - 阮一峰的网络日志 - 0 views

www.ruanyifeng.com/...future-of-dom.html

web application phone performance DOM

shared by 張 旭 on 23 Jan 17 - No Cached
  • 如果将来有一天，Web app会成为主流，一定有一个前提，那就是它的性能可以赶上Native app
  • Web app输给Native app的地方，不是界面（UI），而是操作性能
  • Web基于DOM，而DOM很慢。浏览器打开网页时，需要解析文档，在内存中生成DOM结构，如果遇到复杂的文档，这个过程是很慢的。可以想象一下，如果网页上有上万个、甚至几十万个形状（不管是图片或CSS），生成DOM需要多久？更不要提与其中某一个形状互动了。
  • ...10 more annotations...
  • 所有的DOM操作都是同步的，会堵塞浏览器。JavaScript操作DOM时，必须等前一个操作结束，才能执行后一个操作。
  • 浏览器重绘网页的频率是60FPS（即16毫秒/帧），JavaScript做不到在16毫秒内完成DOM操作，因此产生了跳帧。
  • 没有使用DOM，而是将整个网站用canvas输出
  • canvas可以被硬件加速
  • 主要是canvas只是一个位图，本身没有语义，如果要在它上面实现UI，等于HTML语言已有的东西都要再发明一遍，比如如何实现超链接、如何实现CSS效果等等。
  • canvas不是自适应的（responsive），文字在哪里断行，都要自己计算，而且用户也无法选中文本
  • 多线程浏览器
  • DOM的异步操作。JavaScript对DOM的操作不再是同步的，而是触发后，交给Event Loop机制进行监听。
  • 用数据库取代DOM
  • 非DOM方案。浏览器不再将网页处理成DOM结构，而是变为其他结构
crazylion lee

jkbrzt/httpie - 0 views

github.com/httpie

curl

shared by crazylion lee on 08 Aug 15 - No Cached
  • crazylion lee on 08 Aug 15
     
    "CLI HTTP client; user-friendly cURL replacement featuring intuitive UI, JSON support, syntax highlighting, wget-like downloads, extensions, etc. http://httpie.org"
張 旭

Kubernetes Components | Kubernetes - 0 views

kubernetes.io/...components

kubernetes system

shared by 張 旭 on 17 May 21 - No Cached
  • A Kubernetes cluster consists of a set of worker machines, called nodes, that run containerized applications
  • Every cluster has at least one worker node.
  • The control plane manages the worker nodes and the Pods in the cluster.
  • ...29 more annotations...
  • The control plane's components make global decisions about the cluster
  • Control plane components can be run on any machine in the cluster.
  • for simplicity, set up scripts typically start all control plane components on the same machine, and do not run user containers on this machine
  • The API server is the front end for the Kubernetes control plane.
  • kube-apiserver is designed to scale horizontally—that is, it scales by deploying more instances. You can run several instances of kube-apiserver and balance traffic between those instances.
  • Kubernetes cluster uses etcd as its backing store, make sure you have a back up plan for those data.
  • watches for newly created Pods with no assigned node, and selects a node for them to run on.
  • Factors taken into account for scheduling decisions include: individual and collective resource requirements, hardware/software/policy constraints, affinity and anti-affinity specifications, data locality, inter-workload interference, and deadlines.
  • each controller is a separate process, but to reduce complexity, they are all compiled into a single binary and run in a single process.
  • Node controller
  • Job controller
  • Endpoints controller
  • Service Account & Token controllers
  • The cloud controller manager lets you link your cluster into your cloud provider's API, and separates out the components that interact with that cloud platform from components that only interact with your cluster.
  • If you are running Kubernetes on your own premises, or in a learning environment inside your own PC, the cluster does not have a cloud controller manager.
  • An agent that runs on each node in the cluster. It makes sure that containers are running in a Pod.
  • The kubelet takes a set of PodSpecs that are provided through various mechanisms and ensures that the containers described in those PodSpecs are running and healthy.
  • The kubelet doesn't manage containers which were not created by Kubernetes.
  • kube-proxy is a network proxy that runs on each node in your cluster, implementing part of the Kubernetes Service concept.
  • kube-proxy maintains network rules on nodes. These network rules allow network communication to your Pods from network sessions inside or outside of your cluster.
  • kube-proxy uses the operating system packet filtering layer if there is one and it's available.
  • Kubernetes supports several container runtimes: Docker, containerd, CRI-O, and any implementation of the Kubernetes CRI (Container Runtime Interface).
  • Addons use Kubernetes resources (DaemonSet, Deployment, etc) to implement cluster features
  • namespaced resources for addons belong within the kube-system namespace.
  • all Kubernetes clusters should have cluster DNS,
  • Cluster DNS is a DNS server, in addition to the other DNS server(s) in your environment, which serves DNS records for Kubernetes services.
  • Containers started by Kubernetes automatically include this DNS server in their DNS searches.
  • Container Resource Monitoring records generic time-series metrics about containers in a central database, and provides a UI for browsing that data.
  • A cluster-level logging mechanism is responsible for saving container logs to a central log store with search/browsing interface.
crazylion lee

Figma: the collaborative interface design tool. - 0 views

www.figma.com

design collaboration ui collaborative tool ux

shared by crazylion lee on 17 Oct 16 - No Cached
  • crazylion lee on 17 Oct 16
     
    "The first interface design tool with real-time collaboration. Figma keeps everyone on the same page. Focus on the work instead of fighting your tools. "
kickdesk

卡片式设计，并不能支撑所有的设计需求 | 人人都是产品经理 - 0 views

www.woshipm.com/503654.html

设计 UX UI

shared by kickdesk on 12 Dec 16 - No Cached
  • kickdesk on 12 Dec 16
     
    這是一份可以提供PM跟客戶講佈局的參考文章，中間有注意力停留的數據
張 旭

React 入门实例教程 - 阮一峰的网络日志 - 0 views

www.ruanyifeng.com/...react.html

javascript programming web frontend react

shared by 張 旭 on 23 Jan 17 - No Cached
  • React 起源于 Facebook 的内部项目，因为该公司对市场上所有 JavaScript MVC 框架，都不满意，就决定自己写一套，用来架设 Instagram 的网站。
  • 项目本身也越滚越大，从最早的UI引擎变成了一整套前后端通吃的 Web App 解决方案
  • React Native 项目，目标更是宏伟，希望用写 Web App 的方式去写 Native App。
  • ...9 more annotations...
  • 凡是使用 JSX 的地方，都要加上 type="text/babel"
  • Browser.js 的作用是将 JSX 语法转为 JavaScript 语法，这一步很消耗时间，实际上线的时候，应该将它放到服务器完成。
  • HTML 语言直接写在 JavaScript 语言之中，不加任何引号，这就是 JSX 的语法，它允许 HTML 与 JavaScript 的混写
  • JSX 的基本语法规则：遇到 HTML 标签（以 < 开头），就用 HTML 规则解析；遇到代码块（以 { 开头），就用 JavaScript 规则解析。
  • JSX 允许直接在模板插入 JavaScript 变量。如果这个变量是一个数组，则会展开这个数组的所有成员
  • 所有组件类都必须有自己的 render 方法，用于输出组件
  • 组件类的第一个字母必须大写，否则会报错
  • 组件类只能包含一个顶层标签
  • 添加组件属性，有一个地方需要注意，就是 class 属性需要写成 className ，for 属性需要写成 htmlFor ，这是因为 class 和 for 是 JavaScript 的保留字。
crazylion lee

Publication Listing - 0 views

matterhorn.dce.harvard.edu/...index.html

Data Science computer

shared by crazylion lee on 30 Jan 17 - No Cached
  • crazylion lee on 30 Jan 17
     
    "Data Science"
crazylion lee

Dark Patterns - User Interfaces Designed to Trick People - 0 views

darkpatterns.org

design ui ux patterns

shared by crazylion lee on 30 Jan 17 - Cached
  • crazylion lee on 30 Jan 17
     
    "Dark Patterns: fighting user deception worldwide"
crazylion lee

Desktop Neo - rethinking the desktop interface for productivity. - 0 views

www.desktopneo.com

desktop design ui

shared by crazylion lee on 03 Apr 16 - No Cached
  • crazylion lee on 03 Apr 16
     
    "rethinking the desktop interface for productivity."
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