current position:Home>JQuery plug-in -- cookie plug-in jquery.cookie.js (transfer)
JQuery plug-in -- cookie plug-in jquery.cookie.js (transfer)
2021-08-22 05:29:58 【mb611f1a641bd18】
Cookie It's a small text file placed on the client by the website designer .Cookie Can be used for users Provide a lot of , For example, a shopping website stores a list of products that users have visited , Or the portal remembers what kind of news users like to browse . With the user's permission , You can also store user login information , So that users don't have to type this information every time they visit the website
Usage method :
1. introduce jquery.cookie.js
<script src="scripts/jquery-1.6.4.js" type="text/javascript"></script> <script src="scripts/jquery.cookie.js" type="text/javascript"></script>
- 1.
- 2.
2. Usage method
1). Add a new session cookie:
$.cookie('the_cookie', 'the_value');
notes : When there is no indication cookie Effective time , Created cookie The expiration date is until the user closes the browser by default , So it's called
“ conversation cookie(session cookie)”.
2). Create a cookie And set the effective time to 7 God :
$.cookie('the_cookie', 'the_value', { expires: 7 });
notes : When it is pointed out that cookie Effective time , Created cookie go by the name of “ persistent cookie (persistent cookie)”.
3). Create a cookie And set up cookie The effective path :
$.cookie('the_cookie', 'the_value', { expires: 7, path: '/' });
notes : By default , Only settings cookie The web page can read the cookie. If you want one page to read another page, set
Placed cookie, You have to set cookie The path of .cookie The path is used to set the ability to read cookie Top level directory for . Will this
Set a path to the root directory of the website , It can make all the web pages read from each other cookie ( Don't set it like this , Prevent conflict ) .
4). Read cookie:
$.cookie('the_cookie'); // cookie There is => 'the_value'
$.cookie('not_existing'); // cookie non-existent => null
5). Delete cookie, By passing null As cookie The value of the can :
$.cookie('the_cookie', null);
3. take cookie write file
var COOKIE_NAME = 'username'; if( $.cookie(COOKIE_NAME) ){ $("#username").val( $.cookie(COOKIE_NAME) ); } $("#check").click(function(){ if(this.checked){ $.cookie(COOKIE_NAME, $("#username").val() , { path: '/', expires: 10, domain: 'jquery.com', secure: true }); //var date = new Date(); //date.setTime(date.getTime() + (3 * 24 * 60 * 60 * 1000)); // It will expire at this time in three days //$.cookie(COOKIE_NAME, $("#username").val(), { path: '/', expires: date }); }else{ $.cookie(COOKIE_NAME, null, { path: '/' }); // Delete cookie } });
- 1.
- 2.
- 3.
- 4.
- 5.
- 6.
- 7.
- 8.
- 9.
- 10.
- 11.
- 12.
- 13.
- 14.
Parameter setting :
expires: (Number | Date) The period of validity , You can set an integer as the validity period ( Company : God ), You can also set a date object as Cookie The expiration date of . If the specified date is negative , Then this cookie Will be deleted except ; If not set or set to null, Then this cookie Will be treated as Session Cookie Handle , And delete after the browser closes
path: (String) Cookie Path properties of , The default is to create the cookie Page path
domain: (String) Cookie Domain name properties , The default is to create the cookie The domain name of the page
secure: (Boolean) If it is set to true, Then this cookie The transmission of will require a security protocol , for example HTTPS
Cookie It's a small text file placed on the client by the website designer .Cookie Can be used for users Provide a lot of , For example, a shopping website stores a list of products that users have visited , Or the portal remembers what kind of news users like to browse . With the user's permission , You can also store user login information , So that users don't have to type this information every time they visit the website
Usage method :
1. introduce jquery.cookie.js
<script src="scripts/jquery-1.6.4.js" type="text/javascript"></script> <script src="scripts/jquery.cookie.js" type="text/javascript"></script>
- 1.
- 2.
2. Usage method
1). Add a new session cookie:
$.cookie('the_cookie', 'the_value');
notes : When there is no indication cookie Effective time , Created cookie The expiration date is until the user closes the browser by default , So it's called
“ conversation cookie(session cookie)”.
2). Create a cookie And set the effective time to 7 God :
$.cookie('the_cookie', 'the_value', { expires: 7 });
notes : When it is pointed out that cookie Effective time , Created cookie go by the name of “ persistent cookie (persistent cookie)”.
3). Create a cookie And set up cookie The effective path :
$.cookie('the_cookie', 'the_value', { expires: 7, path: '/' });
notes : By default , Only settings cookie The web page can read the cookie. If you want one page to read another page, set
Placed cookie, You have to set cookie The path of .cookie The path is used to set the ability to read cookie Top level directory for . Will this
Set a path to the root directory of the website , It can make all the web pages read from each other cookie ( Don't set it like this , Prevent conflict ) .
4). Read cookie:
$.cookie('the_cookie'); // cookie There is => 'the_value'
$.cookie('not_existing'); // cookie non-existent => null
5). Delete cookie, By passing null As cookie The value of the can :
$.cookie('the_cookie', null);
3. take cookie write file
var COOKIE_NAME = 'username'; if( $.cookie(COOKIE_NAME) ){ $("#username").val( $.cookie(COOKIE_NAME) ); } $("#check").click(function(){ if(this.checked){ $.cookie(COOKIE_NAME, $("#username").val() , { path: '/', expires: 10, domain: 'jquery.com', secure: true }); //var date = new Date(); //date.setTime(date.getTime() + (3 * 24 * 60 * 60 * 1000)); // It will expire at this time in three days //$.cookie(COOKIE_NAME, $("#username").val(), { path: '/', expires: date }); }else{ $.cookie(COOKIE_NAME, null, { path: '/' }); // Delete cookie } });
- 1.
- 2.
- 3.
- 4.
- 5.
- 6.
- 7.
- 8.
- 9.
- 10.
- 11.
- 12.
- 13.
- 14.
Parameter setting :
expires: (Number | Date) The period of validity , You can set an integer as the validity period ( Company : God ), You can also set a date object as Cookie The expiration date of . If the specified date is negative , Then this cookie Will be deleted except ; If not set or set to null, Then this cookie Will be treated as Session Cookie Handle , And delete after the browser closes
path: (String) Cookie Path properties of , The default is to create the cookie Page path
domain: (String) Cookie Domain name properties , The default is to create the cookie The domain name of the page
secure: (Boolean) If it is set to true, Then this cookie The transmission of will require a security protocol , for example HTTPS
copyright notice
author[mb611f1a641bd18],Please bring the original link to reprint, thank you.
https://en.qdmana.com/2021/08/20210822052933673x.html
The sidebar is recommended
- Crazy blessing! Tencent boss's "million JVM learning notes", real topic of Huawei Java interview 2020-2021
- JS JavaScript how to get the subscript of a value in the array
- How to implement injection in vuex source code?
- JQuery operation select (value, setting, selected)
- One line of code teaches you how to advertise on Tanabata Valentine's Day - Animation 3D photo album (music + text) HTML + CSS + JavaScript
- An article disassembles the pyramid architecture behind the gamefi outbreak
- BEM - a front-end CSS naming methodology
- [vue3] encapsulate custom global plug-ins
- Error using swiper plug-in in Vue
- Another ruthless character fell by 40000, which was "more beautiful" than Passat and maiteng, and didn't lose BMW
guess what you like
-
Huang Lei basks in Zhang Yixing's album, and the relationship between teachers and apprentices is no less than that in the past. Netizens envy Huang Lei
-
He was cheated by Wang Xiaofei and Li Chengxuan successively. Is an Yixuan a blessed daughter and not a blessed home?
-
Zhou Shen sang the theme song of the film "summer friends and sunny days" in mainland China. Netizen: endless aftertaste
-
Pink is Wangyuan online! Back to the peak! The new hairstyle is creamy and sassy
-
Front end interview daily 3 + 1 - day 858
-
Spring Webflux tutorial: how to build reactive web applications
-
[golang] walk into go language lesson 24 TCP high-level operation
-
August 23, 2021 Daily: less than three years after its establishment, Google dissolved the health department
-
The female doctor of Southeast University is no less beautiful than the female star. She has been married four times, and her personal experience has been controversial
-
There are many potential safety hazards in Chinese restaurant. The top of the program recording shed collapses, and the artist will fall down if he is careless
Random recommended
- Anti Mafia storm: He Yun's helpless son, Sun Xing, is destined to be caught by his dry son
- Introduction to flex flexible layout in CSS -- learning notes
- CSS learning notes - Flex layout (Ruan Yifeng tutorial summary)
- Today, let's talk about the arrow function of ES6
- Some thoughts on small program development
- Talk about mobile terminal adaptation
- Unwilling to cooperate with Wang Yibo again, Zhao Liying's fans went on a collective strike and made a public apology in less than a day
- JS function scope, closure, let, const
- Zheng Shuang's 30th birthday is deserted. Chen Jia has been sending blessings for ten years. Is it really just forgetting to make friends?
- Unveil the mystery of ascension
- Asynchronous solution async await
- Analysis and expansion of Vue infinite scroll source code
- Compression webpack plugin first screen loading optimization
- Specific usage of vue3 video play plug-in
- "The story of huiyeji" -- people are always greedy, and fairies should be spotless!
- Installing Vue devtool for chrome and Firefox
- Basic usage of JS object
- 1. JavaScript variable promotion mechanism
- Two easy-to-use animation JS that make the page move
- Front end Engineering - scaffold
- Java SQL Server intelligent fixed asset management, back end + front end + mobile end
- Mediator pattern of JavaScript Design Pattern
- Array de duplication problem solution - Nan recognition problem
- New choice for app development: building mobile applications using Vue native
- New gs8 Chengdu auto show announces interior Toyota technology blessing
- Vieira officially terminated his contract and left the team. The national security club sent blessings to him
- Less than 200000 to buy a Ford RV? 2.0T gasoline / diesel power, horizontal bed / longitudinal bed layout can be selected
- How does "heart 4" come to an end? Pinhole was boycotted by the brand, Ma Dong deleted the bad comments, and no one blessed him
- We are fearless in epidemic prevention and control -- pay tribute to the front-line workers of epidemic prevention!
- Front end, netty framework tutorial
- Xiaomi 11 | miui12.5 | android11 solves the problem that the httpcanary certificate cannot be installed
- The wireless charging of SAIC Roewe rx5 plus is so easy to use!
- Upload and preview pictures with JavaScript, and summarize the most complete mybatis core configuration file
- [25] typescript
- CSS transform Complete Guide (Second Edition) flight.archives 007
- Ajax foundation - HTTP foundation of interview essential knowledge
- Cloud lesson | explain in detail how Huawei cloud exclusive load balancing charges
- Decorator pattern of JavaScript Design Pattern
- [JS] 10. Closure application (loop processing)
- Left hand IRR, right hand NPV, master the password of getting rich