Research on the development history of Gnu/Linux and the development history of gnulinux
1. gnu/Linux is a UNIX-like Operating System Based on POSIX and UNIX. the Network-centric UNIX design concept is a stable multi-user network operating system.
Linus Torvalds released the first Linux announcement in the usenet comp. OS. minix news group in October 5, 1991.
Basic Ideas: 1. Everything is a file 2. Every so
Official Website
Http://code.google.com/p/reallysimplehistory/
It mainly involves the use of two objects.
Dhtmlhistory and historystorage.
1. dhtmlhistory. Add (param1, param2 ).
This method stores browser history records. For example, the current URL is callback ("p2", param2 ). The framework will automatically record the previous browsing history. The framework allows you to store some data in this
Backbone. History. Start ([Options])
After all your routes are created and configured, call backbone. History. Start () to start monitoring the hashchange event and assign routes.
It should be noted that if you want to use the pushstate supported by HTML5 in your application, you can use:
Backbone.history.start({pushState:true});
If you want to use
Javascript: The difference between history. Go () and history. Back ()
Window. Location. Reload () ">Window. History. Go (1)">Window. History. Go (-1) ">Window. History. Forward ()">Window. History. Back () "> Backward + refresh
Fault symptom:The browsing records of IE are cleared. However, when you enter the website address in the address bar of the browser, the previously logged-on website address still appears.Cause analysis:Internet Explorer 8 uses Windows Search to index accessed content. When you enter an address in the address bar, IE 8 will automatically Search for and extract information from the index (Windows XP needs to download and install Windows Search to implement this function ). This is the convenience
Tags: style blog http color os ar problem htmlThe python2.6 is upgraded to python2.7 under CentOS6.5, and Ipython is installed, and the following information is displayed when the Ipython is started:WARNING: IPython requires SQLite, your history won't be savedHere's how to fix it:
download and unzip the SQLite package, enter the command: #wget http: / /www .sqlite .org /sqlite -autoconf -3071401 .tar .gz #tar zxvf sqlite-
VaR go = Document. queryselector (". Go "),Back = Document. queryselector (". Back "),Url = Window. Location. href;
W. addhandler (go, "click", function (){History. Go (1 );});
W. addhandler (back, "click", function (){History. Go (-1 );});
W. addhandler (window, "hashchange", function (){
W. Log (window. Location. href );// Pushstate creates a false URL at
frame, representing the historyitem corresponding frame, and its parent frame.The M_scrollpoint is the location currently displayed. If you jump through anchor, this value will be differentiated.M_stateobject is the content that is manipulated by the pushstate and replacestate of the HTML5 history API.The jsbinding layer is provided by the history through frame
Have you forgotten mysql history or mysql history?
To view mysql statements, we usually use the show processlist command. However, this command makes sense for statements with a long query time, the statement that can be executed at once cannot be used quickly.
So we can only start from the mysql history. To achieve this goal, we need to modify the/etc/my. cnf fi
The history history object in JavaScript contains information about the URL that the user has browsed, referring to the browsing history of the browser as a historical object. Given the need for security, the object receives a lot of restrictions and now only has the following properties and methods left. The history
Bash saves the history of commands used. The history of these commands is stored in the. bash_history file of the user's main directory.
Introduction
Bash saves the history of commands used. The history of these commands is stored in the. bash_history file in the user's main directory.
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View the history command and history command
Files have been cleared during production. Which of the following operations can be checked?
Use history to view historical commands:
$ History | more
You can also run the following command to view the history:
$ Vi ~ /.
This property returns the and of the number of addresses that are contained under "forward" and "back" two keys. I don't seem to use this property very often, and I don't use it very much.
The history object provides three ways to access the history list:
History.back () Loads the previous URL in the History list, which is equivalent to pressing the back button
Every command we operate is often recorded by the machine, and some sensitive operation commands are blocked for security purposes.Set the default number of records in Linux:Temporary effect:Export histsize = 5HistoryValid permanently:Echo "Export histseze = 5">/etc/profile./Etc/profile or source/etc/profile // The configuration must take effect.Control history files: variable of the number of historical records in the command lineCat ~ /. Bash_histor
About the history of jquery
jquery History Plugin helps you-support back/forward buttons and bookmarks in your JavaScript applications. Historical jquery Plug-ins can be To help you get back to your JavaScript support applications/forward buttons and bookmarks. You can store the "application state" into the URL hash and restore the states from it. It is possible to save the URL hash of the application state
C language development history and reserved words (keywords) -- Appendix: C language standard documentation, Development History keywordsIntroduction
Take the time to sort out the development history of C language and the standard library files of C language and their reserved words/keywords. The international standards of C language versions will be attached to
Objective:
React-router-dom 4.4.2
Use directly from the page from ' React-router-dom ' //Use " /app/studymapmodule/detail "Possible error:BROWSER.JS?FEC5:thenew entry'll is not being added to the history stackCause: The browser does not push the same path to the stackFIX: Add on replace" /app/studymapmodule/detail "Reference:https://github.com/ReactTraining/history/issues/488React Warning:hash
plot summary:Dr. Stephen Hawking's "Brief History of Time", mainly about black holes, about black holes, what need to know?Drama Start:Star Calendar July 11, 2016 17:02:46, the Milky Way Galaxy Earles the Chinese Empire Jiangnan Line province.[Engineer Ah Wei] is working with [machine Wei] to study [The history of time about black holes].Easter eggs: (for stacks, queues, binary tree python implementations,
Clearfix clears floating history and clearfix floating history
I think everyone should have a deep understanding of the usage of clearing float when writing CSS. Today we will discuss the history of clearfix.
Clearfix clear floating
First of all, we used to clear floating many years ago.
. Clear {clear: both; line-height: 0 ;}Currently, you may also see such cod
The window. history Object does not use the window prefix when writing. To protect user privacy, the methods for accessing this object by JavaScript are limited.
Method:
History. back ()-load the previous URL in the history list, which is the same as clicking the forward button in the browser.History. forward ()-load the next URL in the
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