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Is there a keyboard shortkey to browse the history in a Jupyter notebook

由 跟風遠走 提交于 2019-12-01 14:58:53
问题 Is there an easy way to browse through command history and reuse old commands in a Jupyter notebook? Some equivalent to either the arrow up/down use in the iPython console or to the % sign use in Mathematica. (Although the answer might seem trivial to an expert, it is really hard to find for a newbie) 回答1: I was looking for the same. But a year later, and after about 10 min of scouring the best I found (link) is this magic command: %recall last or %recall <integer> , which after execution

基于vux的Vue路由切换动画

由 允我心安 提交于 2019-12-01 12:07:04
const history = window.sessionStorage history.clear() let historyCount = history.getItem('count') * 1 || 0 history.setItem('/index', 0) router.beforeEach((to, from, next) => { const toIndex = history.getItem(to.path) const fromIndex = history.getItem(from.path) if (toIndex) { if (!fromIndex || parseInt(toIndex, 10) > parseInt(fromIndex, 10) || (toIndex === '0' && fromIndex === '0')) { store.commit('UPDATE_DIRECTION', { direction: 'forward' }) } else { store.commit('UPDATE_DIRECTION', { direction: 'reverse' }) } } else { ++historyCount history.setItem('count', historyCount) to.path !== '/index'

spark 查看 job history 日志

由 亡梦爱人 提交于 2019-12-01 11:34:37
SPARK_HOME/conf 下: spark-defaults.conf 增加如下内容 spark.eventLog.enabled true spark.eventLog.dir hdfs://master:8020/var/log/spark spark.eventLog.compress true spark-env.sh 增加如下内容 export SPARK_HISTORY_OPTS=”-Dspark.history.ui.port=18080 -Dspark.history.retainedApplications=3 -Dspark.history.fs.logDirectory=hdfs:/master.et2:8020/var/log/spark” 启动start-history-server.sh SPARK_HOME/conf 下: 执行 ./start-history-server.sh spark job history web: master:18080 这样在spark任务运行完成之后,就可以通过web页面查看日志了 history server相关的配置参数描述 spark.history.updateInterval 　　默认值：10 　　以秒为单位，更新日志相关信息的时间间隔 spark.history

POJ 1789 Truck History (Kruskal)

由 亡梦爱人 提交于 2019-12-01 10:24:42
题目链接： POJ 1789 Description Advanced Cargo Movement, Ltd. uses trucks of different types. Some trucks are used for vegetable delivery, other for furniture, or for bricks. The company has its own code describing each type of a truck. The code is simply a string of exactly seven lowercase letters (each letter on each position has a very special meaning but that is unimportant for this task). At the beginning of company's history, just a single truck type was used but later other types were derived from it, then from the new types another types were derived, and so on. Today, ACM is rich enough to

jquery history plugin set current page possible?

由 别等时光非礼了梦想. 提交于 2019-12-01 09:56:30
问题 I use jquery pagination plugin, unfortunately it doesn't have method to set current page from outside the object. I've really looked into this object (the function is not long), but as a jquery beginner I can not even find how the event binds (by click obviously). I have no idea how to modify this function so I can call something like: current_page(10) to set current page to 10. I have everything else working for history (using the change hash event), back now loads previous page OK, but

Linux开启同步history记录到指定文件

由 空扰寡人 提交于 2019-12-01 07:20:52
[root@node1 tmp]# vi /etc/profile export PROMPT_COMMAND='{ msg=$(history 1 | { read x y; echo $y; });echo "[euid=$(whoami)]":$(who am i):[`pwd`]#"$msg" >>/tmp/history_cmd.log; }' [root@node1 tmp]# . /etc/profile [root@node1 tmp]# chmod 777 history_cmd.log [root@node1 tmp]# chattr +a history_cmd.log 来源： https://www.cnblogs.com/qqran/p/11668105.html

window.history.back() shows “Document Expired” page, any way around that?

由 冷暖自知 提交于 2019-12-01 07:07:56
问题 Client is asking for the ability for users to go back to a page full of search results after clicking on a result. Right now it's a simple jQuery call: $('a.detail-back-button').on('click', function(evt) { evt.preventDefault(); window.history.back(); }); This shows a "Document Expired" page in Firefox, however. I know it's there for security, but the client wants this implemented anyways. I've done some searching around and I've found a php solution to the problem... session_cache_limiter(

IE history push state

由 半城伤御伤魂 提交于 2019-12-01 05:46:32
I have a webpage where the user has the possibility to display the terms and conditions without reloading the page, via AJAX. That, in itself, is no problem, however, I am also trying to push a history state. That works fine in most browsers, except in IE. For some inexplicable reason, there, the content is loaded via AJAX, but also, a new tab is opened with the previous page. How can I fix this? You can see the example on this webpage ( http://galaxy-battle.de ), try clicking on "T&Cs" in the "Join"-box. Sergei Grebnov IE9 and below doesn't support pushState . You have an exception when

What is the historical context for long and int often being the same size?

由 喜你入骨 提交于 2019-12-01 05:23:28
According to numerous answers here, long and int are both 32 bits in size on common platforms in C and C++ (Windows & Linux, 32 & 64 bit.) (I'm aware that there is no standard, but in practice, these are the observed sizes.) So my question is, how did this come about? Why do we have two types that are the same size? I previously always assumed long would be 64 bits most of the time, and int 32. I'm not saying it "should" be one way or the other, I'm just curious as to how we got here. From the C99 rationale (PDF) on section 6.2.5: [...] In the 1970s, 16-bit C (for the PDP-11) first represented

How to save history within UpdatePanel?

由 雨燕双飞 提交于 2019-12-01 05:13:30
I created an admin page for a web application, and it's mostly ajax. Almost all the events in the page update one of the UpdatePanels on the page. How can I save each UpdatePanel state in the user's history so when the user pushes the browser "back" button they wont get redirected to the login screen ? The ability to manage history was added in .NET 3.5 SP 1. Here are some resources that will help get you up to speed. Introduction to ASP.NET Ajax History ASP.NET Podcast Show #117 - Using the History Functionality with the ASP.NET AJAX UpdatePanel in .NET 3.5 Service Pack 1 Beta 1 ASP.NET
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