Differences between js in IE and firefox_Basic knowledge
1.firefox cannot support innerText.
Firefox supports innerHTML but not innerText. It supports textContent to implement innerText, but the extra spaces are also retained by default. If textContent is not used, innerHTML can be used instead if the string does not contain HTML code.
2. Prohibit selection of web content:
Generally use js in IE: obj.onselectstart=function(){return false;}
Firefox uses CSS:-moz-user-select:none
3. Filter support (example: transparent filter):
IE:filter:alpha(opacity=10);
firefox:-moz-opacity:.10;
4. Capture event:
IE: obj.setCapture(), obj.releaseCapture()
Firefox: document.addEventListener("mousemove",mousemovefunction,true);
document.removeEventListener("mousemove",mousemovefunction,true);
5. Get mouse position:
IE: event.clientX, event.clientY
firefox: event function is required to pass event object
obj.onmousemove=function(ev){
X=ev.pageX;Y=ev.pageY;
}
6. Boundary issues of DIV and other elements:
For example: set the CSS of a div::{width:100px;height:100px;border:#000000 1px solid;}
In IE: div width (including border width): 100px, div height (including border width): 100px;
And firefox: the width of the div (including the border width): 102px, the height of the div (including the border width): 102px;
So when making this dragging window that is compatible with IE and Firefox, you have to use your brain when writing js and css. Here are two tips for you
1. Determine the browser type:
var isIE=document.all? true:false;
I wrote a variable, if the document.all syntax is supported then isIE=true, otherwise isIE=false
2. CSS processing under different browsers:
Generally, you can use !important to prioritize the use of css statements (only supported by firefox)
For example: {border-width:0px!important;border-width:1px;}
Under Firefox, this element has no border. Under IE, the border width is 1px
1.document.formName.item("itemName") problem
Description of the problem: Under IE, you can use document.formName.item("itemName") or document.formName.elements ["elementName"]; under Firefox, you can only use document.formName.elements["elementName"].
Solution: Use document.formName.elements["elementName"] uniformly.
2. Collection object problem
Description of the problem: Under IE, you can use () or [] to obtain collection objects; under Firefox, you can only use [ ] to obtain collection objects.
Solution: Use [] uniformly to obtain collection class objects.
3. Custom attribute issues
Description of the problem: Under IE, you can use the method of getting regular attributes to get custom attributes, or you can use getAttribute() to get custom attributes; under Firefox, you can only use getAttribute() to get custom attributes.
Solution: Uniformly obtain custom attributes through getAttribute().
4.eval("idName") problem
Description of the problem: Under IE, you can use eval("idName") or getElementById("idName") to get the HTML object with the id idName; under Firefox, you can only use getElementById("idName") to get the HTML object with the id idName. .
Solution: Use getElementById("idName") uniformly to obtain the HTML object whose id is idName.
5. The problem that the variable name is the same as an HTML object ID
Description of the problem: Under IE, the ID of the HTML object can be used directly as the variable name of the subordinate object of document, but not under Firefox; under Firefox, the same variable name as the HTML object ID can be used, but not under IE.
Workaround: Use document.getElementById("idName") instead of document.idName. It is best not to use variable names with the same HTML object ID to reduce errors; when declaring variables, always add the var keyword to avoid ambiguity.
6.const problem
Description of the problem: Under Firefox, you can use the const keyword or the var keyword to define constants; under IE, you can only use the var keyword to define constants.
Solution: Use the var keyword uniformly to define constants.
7.input.type attribute problem
Description of the problem: The input.type attribute under IE is read-only; but the input.type attribute under Firefox is read-write.
Solution: Do not modify the input.type attribute. If you must modify it, you can hide the original input first, and then insert a new input element at the same position.
8.window.event problem
Description of the problem: window.event can only be run under IE, not Firefox. This is because Firefox's event can only be used at the scene where the event occurs.
Solution: Add the event parameter to the function where the event occurs, and use var myEvent = evt?evt:(window.event?window.event:null)
in the function body (assuming the formal parameter is evt)
Example:
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
Video Face Swap
Swap faces in any video effortlessly with our completely free AI face swap tool!
Hot Article
Hot Tools
Notepad++7.3.1
Easy-to-use and free code editor
SublimeText3 Chinese version
Chinese version, very easy to use
Zend Studio 13.0.1
Powerful PHP integrated development environment
Dreamweaver CS6
Visual web development tools
SublimeText3 Mac version
God-level code editing software (SublimeText3)
Hot Topics
1392
52
How to use JS and Baidu Maps to implement map pan function
Nov 21, 2023 am 10:00 AM
How to use JS and Baidu Map to implement map pan function Baidu Map is a widely used map service platform, which is often used in web development to display geographical information, positioning and other functions. This article will introduce how to use JS and Baidu Map API to implement the map pan function, and provide specific code examples. 1. Preparation Before using Baidu Map API, you first need to apply for a developer account on Baidu Map Open Platform (http://lbsyun.baidu.com/) and create an application. Creation completed
How to remove Firefox Snap in Ubuntu Linux?
Feb 21, 2024 pm 07:00 PM
To remove FirefoxSnap in Ubuntu Linux, you can follow these steps: Open a terminal and log in to your Ubuntu system as administrator. Run the following command to uninstall FirefoxSnap: sudosnapremovefirefox You will be prompted for your administrator password. Enter your password and press Enter to confirm. Wait for command execution to complete. Once completed, FirefoxSnap will be completely removed. Note that this will remove versions of Firefox installed via the Snap package manager. If you installed another version of Firefox through other means (such as the APT package manager), you will not be affected. Go through the above steps
Recommended: Excellent JS open source face detection and recognition project
Apr 03, 2024 am 11:55 AM
Face detection and recognition technology is already a relatively mature and widely used technology. Currently, the most widely used Internet application language is JS. Implementing face detection and recognition on the Web front-end has advantages and disadvantages compared to back-end face recognition. Advantages include reducing network interaction and real-time recognition, which greatly shortens user waiting time and improves user experience; disadvantages include: being limited by model size, the accuracy is also limited. How to use js to implement face detection on the web? In order to implement face recognition on the Web, you need to be familiar with related programming languages and technologies, such as JavaScript, HTML, CSS, WebRTC, etc. At the same time, you also need to master relevant computer vision and artificial intelligence technologies. It is worth noting that due to the design of the Web side
How to create a stock candlestick chart using PHP and JS
Dec 17, 2023 am 08:08 AM
How to use PHP and JS to create a stock candle chart. A stock candle chart is a common technical analysis graphic in the stock market. It helps investors understand stocks more intuitively by drawing data such as the opening price, closing price, highest price and lowest price of the stock. price fluctuations. This article will teach you how to create stock candle charts using PHP and JS, with specific code examples. 1. Preparation Before starting, we need to prepare the following environment: 1. A server running PHP 2. A browser that supports HTML5 and Canvas 3
Essential tools for stock analysis: Learn the steps to draw candle charts with PHP and JS
Dec 17, 2023 pm 06:55 PM
Essential tools for stock analysis: Learn the steps to draw candle charts in PHP and JS. Specific code examples are required. With the rapid development of the Internet and technology, stock trading has become one of the important ways for many investors. Stock analysis is an important part of investor decision-making, and candle charts are widely used in technical analysis. Learning how to draw candle charts using PHP and JS will provide investors with more intuitive information to help them make better decisions. A candlestick chart is a technical chart that displays stock prices in the form of candlesticks. It shows the stock price
How to use JS and Baidu Map to implement map click event processing function
Nov 21, 2023 am 11:11 AM
Overview of how to use JS and Baidu Maps to implement map click event processing: In web development, it is often necessary to use map functions to display geographical location and geographical information. Click event processing on the map is a commonly used and important part of the map function. This article will introduce how to use JS and Baidu Map API to implement the click event processing function of the map, and give specific code examples. Steps: Import the API file of Baidu Map. First, import the file of Baidu Map API in the HTML file. This can be achieved through the following code:
What should I do if win11 cannot use ie11 browser? (win11 cannot use IE browser)
Feb 10, 2024 am 10:30 AM
More and more users are starting to upgrade the win11 system. Since each user has different usage habits, many users are still using the ie11 browser. So what should I do if the win11 system cannot use the ie browser? Does windows11 still support ie11? Let’s take a look at the solution. Solution to the problem that win11 cannot use the ie11 browser 1. First, right-click the start menu and select "Command Prompt (Administrator)" to open it. 2. After opening, directly enter "Netshwinsockreset" and press Enter to confirm. 3. After confirmation, enter "netshadvfirewallreset&rdqu
How to use JS and Baidu Maps to implement map heat map function
Nov 21, 2023 am 09:33 AM
How to use JS and Baidu Maps to implement the map heat map function Introduction: With the rapid development of the Internet and mobile devices, maps have become a common application scenario. As a visual display method, heat maps can help us understand the distribution of data more intuitively. This article will introduce how to use JS and Baidu Map API to implement the map heat map function, and provide specific code examples. Preparation work: Before starting, you need to prepare the following items: a Baidu developer account, create an application, and obtain the corresponding AP
