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JAVAScriptThere are three parts, ECMAScript DOM and BOM , depending on the browser, the specific forms of expression are also different. Let's talk today about the differences between the DOM and the BOM.In terms of the encyclopedia:1. Dom is the standard of the "the"; [Standard of public compliance for all browsers]2. BOM is the implementation of various browser vendors according to the DOM in their respec

When the CSV file is output from HTTP response, it is set to UTF8 without the defaultBOM, but Windows Excel uses the BOM to confirm the UTF8 encoding, all need to write the BOM to the beginning of the file. Microsoft's use of the BOM in UTF-8 is due to the distinction between UTF-8 and ASCII encoding. Otherwise opening the CSV file with Excel may be garbled De

We sometimes need to remove the header in the utf8 document. We often need to manually clear it. Below I have sorted out several methods to clear the bom header in the utf8 format file using the php program. I hope it will be helpful to you. Example 1 The Code is as follows: Copy code /*** Remove the bom header from the file.* @ Var 0.1* @ Author Chenwp*/Function clearbom ($ contents

BOM: Byte Order MarkUTF-8 BOM is also called the UTF-8 signature, in fact, the BOM of the UTF-8 has no effect on the UFT-8, is to support the UTF-16, the BOM is added to the UTF-32, the BOM signature is to tell the editor of the current file using what encoding, it is easy f

The contents of JavaScript contain the following three parts: ECMAScript (CORE): JavaScript Language Foundation; DOM (Document Object model): Provides access to HTML and XML interfaces; BOM (Browser object model): Provides objects and methods that are independent of the content and interact between browser windows. I. ECMAScriptECMASCRIPT Specifies the core syntax for JavaScript scripts, such as data types, keywords, reserved wor

Note: Please refer to UTF-8, UTF-16, UTF-32 BOM for a detailed description of Unicode related knowledge. For UTF-8/16/32, the 8/16/32 in their name refers to the number of bits in the encoding unit, that is, their coding units are 8/16/32 bits, and the bytes are 1/2/4 bytes, and if it is multi-byte, it involves the byte sequence. UTF-8 is encoded as a single byte, so no byte order exists. UTF-8 The main advantage is that it can be compatible with A

The bom header is actually a very hateful thing. Sometimes, due to the bom header, the page may be garbled, but sometimes it is necessary to add the bom header, next, let's take a look at how to automatically add the bom header when downloading a PHP file. I hope the article will be helpful to you. The

If you do not know Bom, You should know Dom. Dom :(DocumentObject Model)DocumentObject Model. Bom :(BrowserObject Mode)BrowserObject Model. From the comparison above, we can clearly see that the biggest difference between BOM and Dom isB (browser)AndD (document)OfWhat is the difference between browser and document? The following figure shows that the root n

Problem with BOM HeaderThe problem occurs when JAXB transforms an XML file into a Java object, and a modified XML file with UE is added to the BOM header, resulting in problems with parsing. However, log4j parsing an XML file with a BOM header will not be problematic.What is a BOM header?In the Utf-8 encoded file, the

Recently there are many on the micro-blog to discuss the BOM head problem, BOM header will cause the page display garbled, XML analysis problems. And I happen to encounter a situation in the WML page if the BOM header, PC Browser (IE, Firefox) and Mobile browser (UC) are normal, and if the BOM header, the phone is norm

Example 1 The code is as follows:Copy code /*** Remove the bom header from the file.* @ Var 0.1* @ Author Chenwp*/Function clearbom ($ contents ){// Remove the bom header from the text by UTF8$ BOM = chr (239). chr (187). chr (191 );Return str_replace ($ BOM, '', $ contents );}/*** Remove the

Utf-8+bom's problem, fainted ~ ~ ~ This post was last edited by u010572351 on 2013-07-10 13:14:01 Yesterday I asked such a question http://bbs.csdn.net/topics/390512808 It is true that Utf8-bom is a problem, but today there are new problems: that is no BOM UTF-8 Chinese directly is garbled, Utf8+bom format Chinese Normal, the existing a bit messy. 1.OB cache

1, BOM introductionA BOM (Browser object model) that can be accessed and manipulated by the browser window. Using the BOM, developers can move the window, change the text in the status bar, and perform other actions that are not directly related to the content of the page.Make JavaScript capable of "talking" to the browser.2. Window Object1 Window Object 2 wi

JS Language is a scripting language responsible for the dynamic effect of the page in BS development, in this case, the knowledge about browser pages, BOM: Browser object model, related to JS in the operation of the browser page of some basic knowledge. The most central object here is window, which contains six large attributes, which are objects themselves. As you can see from the diagram, the Document object in window, the DOM (which is summarized s

Window object ECMAScript is the core of JavaScript, but if you want to use JavaScript on the web, then the BOM (browser object model) is the real core. The BOM provides a number of objects that are used to access the functionality of the browser, regardless of the content of any Web page. Window object: The core object of the BOM is window, which represents an

PHP realizes the automatic detection and removal of the BOM of UTF-8 files, This article describes the PHP to realize the UTF-8 file BOM automatic detection and removal method. Share it with you for your reference. The specific implementation method is as follows: BOM information is a hidden string starting with a file that is used by some editors to identify it

JAVA outputs a UTF-8 encoded file with BOMWhen the CSV file is output from the http response, it is not included by default when it is set to utf8.Bom, But windows Excel uses bom to confirm utf8 encoding, and all bom needs to be written to the beginning of the file.Microsoft uses BOM in UTF-8 because it can clearly dis

1. What is the BOM header?In a UTF-8 encoded file, the BOM occupies three bytes in the file header to identify the file as a UTF-8 encoded file. Currently, many software programs have recognized the BOM header, but some cannot recognize the BOM header, for example, PHP cannot recognize the

) { Console.WriteLine(encoding.ToString()); byte[] buffer = encoding.GetBytes(t); foreach (byte b in buffer) { Console.Write(b + "-"); } string s = encoding.GetString(buffer); Console.WriteLine(s); } String strtest = "test my notebook A has K"; console. writeline (strtest); output (encoding. getencoding ("gb18030"), strtest); output (encoding. default, strtest); output (encoding. UTF32, strt

JS composition As we all know, javascript there are three components ECMAScript , DOM and, BOM depending on the host (browser), the specific manifestations are not the same, IE and other browser styles are different. 1. DOM is the standard of the web; [Standard for all browsers to comply]2. BOM is the various browser vendors according to DOMImplementation on the respective browsers; [behaves differe