代码语言:javascript 代码运行次数:0 运行 AI代码解释 /*** Base64 Encoding ***/staticconstsize_tBASE64_ENCODE_INPUT=3;staticconstsize_tBASE64_ENCODE_OUTPUT=4;staticconstchar*constBASE64_ENCODE_TABLE="ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=";size_tbase64EncodeGetLength(size_...
Thebtoa()method creates a Base64-encoded ASCII string from a binary string (i.e., a string in which each character in the string is treated as a byte of binary data). 现在您知道JavaScript中的字符通常需要不止一个字节,下一部分将演示如何处理这种情况下的base64编码和解码。 btoa()和atob()与...
*/publicabstract intmaxOutputSize(int len);}// ---// decoding// ---/** * Decode the Base64-encoded data in input and return the data in * a new byte array. * * <p>The padding '=' characters at the end are considered optional, but * if any are present, there must be the ...
console.log(base64.decode(enc)); 标签: javascript , algorithm , encoding 好文要顶 关注我 收藏该文 微信分享 zhanghui_ming 粉丝- 0 关注- 50 +加关注 0 0 升级成为会员 « 上一篇: php laravel v5.1 消息队列 » 下一篇: javascript wchar_t 宽字符 转化为 ascii字符码数组 posted...
Unicode is a computing industry standard for the consistent encoding, representation, and handling of text expressed in most of the world's writing systems. 在创造Unicode之前各种语言有不同的编码集合,ASCII,GB2312等也是发展过程中编码集合,而且这些编码集合相互冲突,给不同语言系统进行交流带来了麻烦。因为...
Blob URL 用于表示 Blob 对象的地址,通常用于在浏览器中处理和操作二进制数据,如文件下载、视频播放、图像显示等。它适用于大型数据或二进制数据,因为它仅提供了 Blob 对象的引用,而不需要将整个数据嵌入到 URL 中。 Data URL 则直接将数据嵌入到 URL 中,适用于小型数据或文本数据,如图像的 Base64 编码表示、内...
The atob() function is part of the window object in browser JavaScript, but there is no window object when using JSContext directly. One solution would be to implement the functionality in native code (Swift or Objective-C) and call it from JavaScript. See JSExport (link) and various onlin...
现常用于电子邮件中,邮件类型声明如:Content-Transfer-Encoding: base64 ! 由于2的6次方等于64,所以每6个位为一个单元,对应某个可打印字符。三个字节有24个位元,可以对应4个Base64单元,因此3个字节需要用4个base64单元来表示!如:MaN对应base64是:TW Fu ! 这64个可打印字符a-z,A-Z,0-9就占62字符,剩下...
base64is a robust base64 encoder/decoder that is fully compatible withatob()andbtoa(), written in JavaScript. The base64-encoding and -decoding algorithms it uses are fullyRFC 4648compliant. Installation Vianpm: npm install base-64 In a browser: ...
base64-jsdoes basic base64 encoding/decoding in pure JS. Many browsers already have base64 encoding/decoding functionality, but it is for text data, not all-purpose binary data. Sometimes encoding/decoding binary data in the browser is useful, and that is what this module does. ...