Ajax is used to realize the three-level linkage of provinces and cities

• for example: normal B/S mode (synchronous) AJAX Technology (asynchronous) Synchronization: submit the request - > wait for the server to process - > return after processing. During this period, the client browser cannot do anything Asynchronous: the request is triggered by an event - > processed by the server (at this time, ...

Added by tsilenzio on Mon, 03 Jan 2022 19:54:24 +0200

SMBMS ⑤ AJAX authentication old password

SMBMS ⑤ AJAX authentication old password 1. What is AJAX? AJAX is a technology that can update some web pages without reloading the whole web page. AJAX = Asynchronous Javascript And XML, i.e. asynchronous JavaScript and XML, is a technology for creating fast and dynamic web pages. AJAX can make web pages update asynchronously by exchanging ...

Added by bubbadawg on Sat, 01 Jan 2022 01:55:37 +0200

Ajax basic principle and use tutorial (from power node)

First, let's review what ajax is?Ajax = asynchronous JavaScript and XML.Ajax is a technology for creating fast dynamic web pages.Ajax can make web pages update asynchronously by exchanging a small amount of data with the server in the background. This means that a part of a web page can be updated without reloading the whole web page.Traditiona ...

Added by kslagdive on Thu, 23 Dec 2021 04:09:50 +0200

(Framework7 mobile webapp) Springboot introductory training 8 Component template MVVM and AJAX

In webapp development framework 7, the most commonly used is the development of MVVM mode using Component template. This mode uses template technology and ajax and dmo7 (similar to jquery) to generate page html. It requires developers to have high ability to use js script. The Component template requires the componentUrl attribute in the route ...

Added by kenle on Mon, 20 Dec 2021 16:00:40 +0200

ajax learning notes

AJAX 1. Definitions Ajax, namely asynchronous javaScript and XML, is a web page development technology to create interactive, fast and dynamic web page applications. It can update some web pages without reloading the whole web page. Ajax can make web pages update asynchronously by exchanging a small amount of data with the server in the backg ...

Added by R4nk3d on Sat, 18 Dec 2021 22:52:56 +0200

jQuery basic knowledge summary (super detailed), programmers must learn

When most people use jQuery, they use the first new free construction method to construct directly $(''), which is also a very convenient place for jQuery. When we use the first new free construction method, its essence is equivalent to new jQuery(). How is it implemented inside jQuery? have a look: (function(window, undefined) { var ...

Added by james_cwy on Sat, 18 Dec 2021 02:16:55 +0200

Springboot + JSON + Ajax + ecarts + Fiddler to realize the separation of front and rear end development visualization (Advanced)

Tutorial directory 0x00 tutorial content0x01 create a new SpringBoot project 1. New maven project 2. Write code3. Code explanation 0x02 combination of JSON and AJAX 1. Write html interface 2. Write access interface method3. Code explanation 0x03 surprise 1. It's a colored egg 2. It's another ...

Added by pvtpyro on Fri, 17 Dec 2021 21:27:34 +0200

Relearn es6 Article 2.1

1, es6 proposes many new Grammars: the following is the introduction: let and const commands:Deconstruction and assignment of variablesExtension of operator In es5, there is only one way to declare variables, that is, through var. es6 adds two new ways to declare variables. 1.1 //Declare variables through let console.log(name); //Unca ...

Added by vitorjamil on Wed, 01 Dec 2021 16:07:29 +0200

Closure (JS you don't know)

What exactly is a closure Find out the difference between lexical scope and closure search function foo() { var a = 2; function bar() { console.log(a); } return bar; } var baz = foo(); baz(); // 2 -- friend, this is the effect of closure. bar() can obviously be executed normally. But in this case, it is executed outside its own ...

Added by r_a_s_robin on Wed, 24 Nov 2021 08:46:32 +0200

Employee permission management - displayed in the left navigation bar

1. RBAC authority design idea Administrators assign roles to users Then assign permission points to the role, and the administrator logs out Role login displays the permissions you can use two   Permission application - control dynamic routing (navigation menu) Get all menu IDS accessible to the current user Get all the local dynam ...

Added by SyWill on Fri, 19 Nov 2021 06:35:28 +0200