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_...
Decoding Base64 in JavaScript Using the atob() Function Theatob()function is the counterpart of thebtoa()function and is used to decode Base64-encoded strings back to their original binary form. It is also supported in modern browsers and can be used as follows: constbase64Encoded="Y29kZWR...
out += base64EncodeChars.charAt(((c1 & 0x3)<< 4) | ((c2 & 0xF0) >> 4)); out += base64EncodeChars.charAt(((c2 & 0xF) << 2) | ((c3 & 0xC0) >>6)); out += base64EncodeChars.charAt(c3 & 0x3F); }returnout; }functionbase64decode(str) {varc1, c2, c3, c4;vari,...
This function is only provided for compatibility with legacy web platform APIs and should never be used in new code, because they use strings to represent binary data and predate the introduction of typed arrays in JavaScript. For code running using Node.js APIs, converting between base64-encode...
Decode as Image This is a simple online base 64 encoder and decoder. This page was designed to be helpful to developers and anyone doing programming work. Base64 is a common format used for the web and email. It allows binary data to be transmitted in plain text format without risk of ...
In JavaScript there are two functions respectively for decoding and encodingbase64strings: atob() btoa() 工作场景,客户端HTML片段的保存与再现。 The "Unicode Problem" SinceDOMStrings are 16-bit-encoded strings, in most browsers callingwindow.btoaon a Unicode string will cause aCharacter Out Of Ran...
代码语言:javascript 代码运行次数:0 运行 AI代码解释 // plain-text stringconststr='Base64 Encoding in Node.js';// create a bufferconstbuff=Buffer.from(str,'utf-8');// encode buffer as Base64constbase64=buff.toString('base64');// print Base64 stringconsole.log(base64);// QmFzZTY0IEVu...
那么第一步就是拿到这个字符串的utf-8的二进制流。虽然 JavaScript 默认使用utf-16,但是其提供了TextEncoder.encode()和TextDecoder.decode()用于字符串和utf-8字节流转换。接下来以中文这个字符串为例,分编码和解码进行讲解。 编码 对于编码,我们可以通过下面的代码拿到一个字符串的utf-8字节流 ...
Decode String 2019-12-24 00:56 − 将一个带格式的字符串转换成一个正常的字符串。仔细观察 ,是要用到字符串的repeat方法,中括号前的数字为重复次数,括号内的数据需要再次转译成正常字符串。 ```javascript var numberMap = new Array(10).fill(0).reduce((obj, el, in... 司徒正美 0 263 ...
encodeURIComponent() 函数通过将特定字符的每个实例替换成代表字符的 UTF-8 编码的一个、两个、三个或四个转义序列来编码 URI(只有由两个“代理”字符组成的字符会被编码为四个转义序列)。与 encodeURI() 相比,此函数会编码更多的字符,包括 URI 语法的一部分。