The History property of the Window object refers to the history object of the Windows. The history object is used to represent the window's browsing histories in the form of documents and document status lists. The length of the history object represents the number of elements in the Browse historical list, but for sec
When we are doing the project, often some modules are browsing the record list, but how can we implement the browsing record function in PHP, now we use cookies to achieve
Let's first analyze the idea.
Visit page
Get a list of product data stored in your browsing history
If the currently browsed item is not added in the history, there is an update
If you know the idea, you can look directly at the code
T
Bash is arguably the most widely used shell in the *nix world, and one of its characteristics is the historical command (history) mechanism. This mechanism is mainly used for the convenience of the user-less knocking on the keyboard, improve work efficiency. However, it is widely discussed that bash_history can be used as a logging mechanism to monitor user activity. This article will discuss the above questions and explain why the logging mechanism i
Do you want to know how the Internet was born? If you don't want to read thick monographs like bricks, here is an 8-minute video produced by Milah bilgil, which describes the history of the Internet over 50 years since 1957, the time-sharing system, and file sharing, ARPANET and later Internet.
The video uses a very novel technique, picol icons from picol.org, which means pictorial communication language (Graphic Communication Language ), the goal of
Using the computer for a long time, will clean up the computer, some historical records to clear, so that the computer can run faster, Xshell is the same truth. This episode teaches you how to clear the history of Xshell. How to Clear history: 1. Open Xshell, then click "Tools" and select "Options". 2. In the popup dialog box, select "General" and click "Clear" 3. Tick "Clear
-on user, forcing the user to log out, using the W command;
First: Use W to view the currently logged-on user, note the logon process terminal number as shown in TTY
Second: Use pkill–9-t pts/1 to end the user login for the PTS/1 process (depending on the IP address or host number of from) Two, view the operation history of all logged-in users
In the Linux system environment, whether the root users or other users only access to the system after the en
MVP on Android is a common design pattern, in the launhcer, mobile browser often see, observe the other great God wrote, now summed up, fencing up to write a demoIf you have any questions, please put them in the room.We will study the discussion together.Demo; http://download.csdn.net/detail/xufeifandj/8267619Demo is mainly home page is a webview, realize the history of adding, and display. The example is relatively simple.The entire project is struct
Using history to solve ajax does not support forward/backward/refresh, historyajaxPreface:
Currently, both the front and back ends use ajax to interact with the front and back ends. However, ajax has a small disadvantage: it does not support the browser's "backward" and "Forward" keys.
However, now we can solve this small bug of ajax interaction requests through the histroy attribute of H5.Event Description:
An event window. onpopstate is added to H5.
This article mainly introduces the php browser history method, which involves the php cookie operation technique and is of great practical value, for more information about viewing history in php, see the following example. Share it with you for your reference. The specific implementation method is as follows:
/*** Product history browsing record * $ data pr
This article mainly introduces the PHP browsing history of the method, involving PHP operation cookie skills, very practical value, the need for friends can refer to the following
The example in this article describes how PHP browsing history is used.
The implementation method is as follows:
/** * Product History Browsing
Clear the records that have been successfully logged on to the system [root @ localhostroot] # echo gt;/var/log/wtmp // garbled characters when this file is opened by default, ip address and other information can be found [root @ localhostroot] # last // at this time, the user login information cannot be found to clear the logon system failure record [root @ localhostroot
Clear records of successful login to the system[Root @ localhost root] # echo>/var/log/wtmp // garbled characters when this
; document.getElementById ( "book"). InnerHTML = bookhtml; } This basic AJAX request is set up and then responds to the next page button: function NextPage () { //The index of the page plus 1 pageindex++; // Resend Request and page load makerequest (pageIndex); } In this case, if you do not do anything, you will not be able to play the role of browser back, Forward button.If you can detect the user point back, forward button, you can do some articles. H5
Display command execution time
Linux shell has the history function, that is, it records the commands that have been executed, but by default, it does not display the command execution time, command execution time, and history, but it is not displayed. Now let's see how to display the execution time. Simple: add the HISTTIMEFORMAT environment variable to/home/$ USER/. bashrc. The details are as follows:
command-line editing:Cursor Jump:CTRL + A: Skip to the beginning of the commandCtrl+e: Jump to the end of the command lineCtrl+u: Delete the cursor to the beginning of the command lineCTRL+K: Delete the cursor to the end of the command lineCtrl+l: Clear ScreenCtrl+d: Delete the contents after the cursorCommand history:View command history: Historical-C: Empty command history-D OFFSET [n]: Delete command at
processing.Very troublesome? Yes, so there are a couple of new features in HTML5 history that can be elegantly addressed to these issues!Two. New features of HTML5 historyThe history object was introduced from HTML4, and the HTML5 added Pushstate, replacestate two methods, and Popstate events. Here are some simple introductions.1. Pushstate () methodThe function of Pushstate () is to press a record into th
Tags: Shell introduction command history1. What is a shell?Open the system, enter ZS, press the Tab key, the command Zsoelim appears,Description No zsh command, this time can be installed, first enter the command yum list |grep zsh, enter, search,You can see that there are zsh commands, there are ksh commands, this way we will not install.2. Command historyThe commands that we have executed are actually saved to a file. You can view the previous commands by pressing the UP ARROW key, so where ar
The history record has entered commands without any parameters and displays the default number of command histories directly.(1) View and modify history settings.in the user's home directory, such as the/root directory, exists. Bash_profile and . Bash_profile these two files. which . Bash_history is the history of the command that records the number of directory
Command formatHistory [-c] [-D offset] [n]HISTORY-ANRW [filename]History-ps arg [arg...]Command parameters-CClears the History list.-D OffsetDelete the history entry numbered as offset.NDisplays the most recent N records.History extension
Sequence
Behavior
!!
Repeats the last co
How to delete the history record in Linux the Kindle reminds everyone that if the target is a linux server during intrusion, do not forget the history of the history command when checking whether to clear traces. 1. Modify/etc/profile and change HISTSIZE = 1000 to 0 or 1 to clear the user's home path. Bash_history 2. Clear the Current
Windows 8's new feature "file history" has seen an increasing number of personal data and its importance has probably exceeded the device itself. How can we place such important data? If the local disk fails, even if there is a backup, will it disappear with the disk damage? How can we improve this dilemma? The Windows 8 consumer preview edition has a built-in function named "File History", which backs up d
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