


js dynamically loading images under IE6 and IE7 does not display errors_javascript skills
Let me first describe the background of this bizarre bug:
I load a bunch of small thumbnails when the page is loading,
So many small thumbnail labels are tiled in a loop, and when a small picture is clicked, it is loaded dynamically Large picture display is similar to viewing pictures of products on Taobao. There is a tag on the page:
In order to save traffic, To speed up page loading, the large image is not loaded first. When the user clicks on the small image, a large image is dynamically loaded and displayed.
<script> <BR>function switch_image(im) <BR>{ <BR>document.getElementById('big-image').src=im; <BR>} <BR></script>
This method works in IE6,7 All other browsers work normally, such as IE8, Firefox, Opera, chrome, and Safari. . .
The two browsers IE6 and 7 cannot load. When you click on the thumbnail, sometimes you can load it, sometimes it is half loaded, and sometimes it cannot be loaded.
I thought the problem was with src. It is possible that IE6 and 7 cannot load images correctly after modifying src, so I tried to modify the switching function to:
document.getElementById('pic-box').innerHTML='
IE6 and 7 still didn't work, so I thought maybe the image was cached, so I added a random number:
document.getElementById('pic -box').innerHTML='
IE6 and 7 still don't work. .
So I was thinking that there might be a problem with img being used in innerHTML, so I changed it to appendChild
var img = document.createElement('img');
img.src= im;
document.getElementById('pic-box').appendChild(img);
Still not working.
Modify it to use new image:
var img = new Image();
img.src= im;
document.getElementById('pic-box').appendChild( img);
Still not working.
I was puzzled and thought, can’t IE6 and 7 dynamically load images? Is it a problem with the img tag?
In this case, let’s load the background image instead, so
document.getElementById('pic-box').style.background="url(" im ")";
IE6 and 7 still don’t work. All the above methods are normal except for IE6 and 7.
Only Google non-stop, and the result is:
IE6 and 7 are only using
This situation occurs when images are loaded dynamically. An explanation found on Google:
Several foreigners who were full and had nothing to do repeatedly tested and found that this problem is an underlying mechanism in IE6. The bug has been solved in subsequent versions.
It is said that or using the a tag in this way does not prevent the a tag from triggering some behavior,
leading to ie6 They will mistakenly think that the page has been refreshed or redirected, and all current connections have been interrupted, so that the loading of new pictures is aborted
Of course, these foreigners who are full and have nothing to do also come up with all kinds of incredible and complicated ideas.
There are two simplest methods, one is to use the a tag like this , the other is to replace the a tag with div.
In fact, I found that not only IE6, but IE7 also has this bug, and using: does not solve the problem. 🎜>
So it is recommended to replace the a tag with other tags. In the end, I replaced all a tags with span in anger. Since then, this problem has never occurred again.

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

This article demonstrates frontend integration with a backend secured by Permit, building a functional EdTech SaaS application using Next.js. The frontend fetches user permissions to control UI visibility and ensures API requests adhere to role-base

JavaScript is the core language of modern web development and is widely used for its diversity and flexibility. 1) Front-end development: build dynamic web pages and single-page applications through DOM operations and modern frameworks (such as React, Vue.js, Angular). 2) Server-side development: Node.js uses a non-blocking I/O model to handle high concurrency and real-time applications. 3) Mobile and desktop application development: cross-platform development is realized through ReactNative and Electron to improve development efficiency.

The latest trends in JavaScript include the rise of TypeScript, the popularity of modern frameworks and libraries, and the application of WebAssembly. Future prospects cover more powerful type systems, the development of server-side JavaScript, the expansion of artificial intelligence and machine learning, and the potential of IoT and edge computing.

JavaScript is the cornerstone of modern web development, and its main functions include event-driven programming, dynamic content generation and asynchronous programming. 1) Event-driven programming allows web pages to change dynamically according to user operations. 2) Dynamic content generation allows page content to be adjusted according to conditions. 3) Asynchronous programming ensures that the user interface is not blocked. JavaScript is widely used in web interaction, single-page application and server-side development, greatly improving the flexibility of user experience and cross-platform development.


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

SublimeText3 Linux new version
SublimeText3 Linux latest version

SublimeText3 Mac version
God-level code editing software (SublimeText3)

ZendStudio 13.5.1 Mac
Powerful PHP integrated development environment

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

EditPlus Chinese cracked version
Small size, syntax highlighting, does not support code prompt function