console.log(`Decoded string: [${validUTF16StringDecoded}]`);The following steps explain what this code does to encode the string: 使用TextEncoder接口将UTF-16编码的JavaScript字符串转换为UTF-8编码的字节流,可通过TextEncoder.en
*/voidbase64_encode(constunsigned char*srcData,char*resBase64){int i=0;/*原始数据索引*/int j=0;/*base64结果索引*/unsigned char transIdx=0;// 索引是8位,但是高两位都为0constint srcLen=strlen((constchar*)srcData);/*每3个一组,进行编码*/for(i=0;i<srcLen;i+=3){/*取出第1个字符...
// 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);// QmFzZTY0IEVuY29kaW5nIGluIE5vZGUuanM= 在上面的示例中,我们从...
out += base64EncodeChars.charAt(c1 >> 2); out += base64EncodeChars.charAt(((c1 & 0x3)<< 4) | ((c2 & 0xF0) >> 4)); out += base64EncodeChars.charAt((c2 & 0xF) << 2); out += "="; break; } c3 = str.charCodeAt(i++); out += base64EncodeChars.charAt(c1 >> 2)...
* Base64 encode / decode * http://www.webtoolkit.info * **/varBase64 ={//private property_keyStr: "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/="//public method for encoding, encode:function(input) {varoutput = "";varchr1, chr2, chr3, enc1, enc2, enc3, enc4;...
btoa(String.fromCharCode(...new TextEncoder().encode('中文'))) // 值: '5Lit5paH' 解码 对于解码,首先我们使用atob()将上面得到的 base64 编码转换成字符串。 atob('5Lit5paH') // 值: 'ä¸æ\x96\x87' 接下来我们需要将这个字符串转换成一个Uint8Array二进制字节流,这里我们可以使用...
Encoding and Decoding Base64 in Node.js In Node.js, you can use the Buffer class to encode and decode Base64 data without the need for the btoa() and atob() functions. Here's an example: const binaryString = "codedamn is awesome!"; const base64Encoded = Buffer.from(binaryString).to...
就Nodejs 而言, 可以使用 Buffer 操作二进制数据, 那对前端 JS 而言, 在 TypeArray 出现之前, 是没有可以直接操作二进制数据的类的, 这也与前端很少需要操作二进制数据相关。 所以TypeArray 接口的作用是操作二进制数据。 TypeArray 是一个类数组结构, 也就是说数组可以用的函数, 比如 arr[0], slice, copy...
var bytes = new Uint8Array( buffer ); var len = bytes.byteLength; for (var i = 0; i < len; i++) { binary += String.fromCharCode( bytes[ i ] ); } return window.btoa( binary ); } 怎么把字符串再转回base64(gbk编码格式)???
This good old way loadsBase64in the global context (window). ThoughBase64.noConflict()is made available, you should consider using ES6 Module to avoid taintingwindow. As an ES6 Module locally… import{Base64}from'js-base64'; // or if you prefer no Base64 namespaceimport{encode,decode}fr...