


An example of assigning values from layer sub-layers to parent layer page elements
This article mainly brings you an example of how the layer sub-layer assigns values to the parent layer page elements to achieve the effect of transferring values to the parent layer page. The editor thinks it is quite good, so I will share it with you now and give it as a reference for everyone. Let’s follow the editor to take a look, I hope it can help everyone.
Parent layer:
jsp:
//Add a hidden input box on the page to be used to set the value of the child layer, thereby setting the value of the child layer Data is passed to this page
<input>
js code:
//Set function, when executed, pop up the sub-window and pass the current window name
//弹出子窗口(选择商家) function choseMerchant() { //获取当前窗口名称 var parentName= window.name; /*(由于用的ssm框架)URL对应的是controller方法,并向其传递当前窗口名称,打开的窗口显示页面即 为经过controller方法后返回的页面*/ var url = root + "/adPosition/choseMerchant?parentName="+ parentName; laySum = parent.layer.open({ //设置打开的子窗口效果 type : 2, title : "选择商家", shadeClose : true, shade : 0.5, shift : 0, area : [ '40%', '863px' ], content : url, success: function(layero, index){ } }); }
Sub-layer:
In jsp:
//The hidden input box added to the page, the stored value is the name of the parent window returned after the controller method, used for differentiation, set the id to mainIframeName
<input>
js code:
//Set function, when executed, pass the value and close the current window
function setvalue() { //得到“mainIframeName”输入框中存储的值 var mainIframeName = $("#mainIframeName").val(); //判断是否为空或者是未定义 if (mainIframeName != "" && mainIframeName != "undefined") { //此处的ifrc和winc的意义可自行查阅 var ifrc = window.parent.frames[mainIframeName]; var winc = ifrc.window || ifrc.contentWindow; try { //设置父窗口隐藏输入框的值为hello world winc.document.getElementById("getValue").value = "hello world!"; } catch (ex) { winc.location.reload(); } } //关闭当前窗口 var index = parent.layer.getFrameIndex(window.name); parent.layer.close(index); }
Summary: This method is used for child layers to directly assign values to parent layer elements to achieve The key point of the value-passing effect is that the parent layer window name needs to be passed to the child layer.
The above is the entire content of the example of assigning values to parent layer page elements by the layer sub-layer brought by the editor to achieve the effect of transferring values to the parent layer page. I hope you like it~
Related recommendations:
jQuery automatically assigns values to form elements based on json objects
The above is the detailed content of An example of assigning values from layer sub-layers to parent layer page elements. For more information, please follow other related articles on the PHP Chinese website!

The main uses of JavaScript in web development include client interaction, form verification and asynchronous communication. 1) Dynamic content update and user interaction through DOM operations; 2) Client verification is carried out before the user submits data to improve the user experience; 3) Refreshless communication with the server is achieved through AJAX technology.

Understanding how JavaScript engine works internally is important to developers because it helps write more efficient code and understand performance bottlenecks and optimization strategies. 1) The engine's workflow includes three stages: parsing, compiling and execution; 2) During the execution process, the engine will perform dynamic optimization, such as inline cache and hidden classes; 3) Best practices include avoiding global variables, optimizing loops, using const and lets, and avoiding excessive use of closures.

Python is more suitable for beginners, with a smooth learning curve and concise syntax; JavaScript is suitable for front-end development, with a steep learning curve and flexible syntax. 1. Python syntax is intuitive and suitable for data science and back-end development. 2. JavaScript is flexible and widely used in front-end and server-side programming.

Python and JavaScript have their own advantages and disadvantages in terms of community, libraries and resources. 1) The Python community is friendly and suitable for beginners, but the front-end development resources are not as rich as JavaScript. 2) Python is powerful in data science and machine learning libraries, while JavaScript is better in front-end development libraries and frameworks. 3) Both have rich learning resources, but Python is suitable for starting with official documents, while JavaScript is better with MDNWebDocs. The choice should be based on project needs and personal interests.

The shift from C/C to JavaScript requires adapting to dynamic typing, garbage collection and asynchronous programming. 1) C/C is a statically typed language that requires manual memory management, while JavaScript is dynamically typed and garbage collection is automatically processed. 2) C/C needs to be compiled into machine code, while JavaScript is an interpreted language. 3) JavaScript introduces concepts such as closures, prototype chains and Promise, which enhances flexibility and asynchronous programming capabilities.

Different JavaScript engines have different effects when parsing and executing JavaScript code, because the implementation principles and optimization strategies of each engine differ. 1. Lexical analysis: convert source code into lexical unit. 2. Grammar analysis: Generate an abstract syntax tree. 3. Optimization and compilation: Generate machine code through the JIT compiler. 4. Execute: Run the machine code. V8 engine optimizes through instant compilation and hidden class, SpiderMonkey uses a type inference system, resulting in different performance performance on the same code.

JavaScript's applications in the real world include server-side programming, mobile application development and Internet of Things control: 1. Server-side programming is realized through Node.js, suitable for high concurrent request processing. 2. Mobile application development is carried out through ReactNative and supports cross-platform deployment. 3. Used for IoT device control through Johnny-Five library, suitable for hardware interaction.

I built a functional multi-tenant SaaS application (an EdTech app) with your everyday tech tool and you can do the same. First, what’s a multi-tenant SaaS application? Multi-tenant SaaS applications let you serve multiple customers from a sing


Hot AI Tools

Undresser.AI Undress
AI-powered app for creating realistic nude photos

AI Clothes Remover
Online AI tool for removing clothes from photos.

Undress AI Tool
Undress images for free

Clothoff.io
AI clothes remover

AI Hentai Generator
Generate AI Hentai for free.

Hot Article

Hot Tools

Dreamweaver Mac version
Visual web development tools

PhpStorm Mac version
The latest (2018.2.1) professional PHP integrated development tool

MantisBT
Mantis is an easy-to-deploy web-based defect tracking tool designed to aid in product defect tracking. It requires PHP, MySQL and a web server. Check out our demo and hosting services.

SAP NetWeaver Server Adapter for Eclipse
Integrate Eclipse with SAP NetWeaver application server.

WebStorm Mac version
Useful JavaScript development tools