eczn/resolve-utf8-base64.md

Last active April 27, 2022 08:33

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解决 utf-8 base64 编码乱码

Raw

乱码不是乱码而是二进制 base64

base64 解中文会乱码，原因是解出来的东西是一个 8 位整数，你得对这个整数进行 .toString(8) 并在前面加上 % 变成形如 %E5%B1%8E 这样的字符串，再进行 decodeComponentURI

汉字转 binary bytes (base64-expression)

btoa(encodeURIComponent('爷青结').split('%').filter(e => !!e).map(e => String.fromCharCode(parseInt(e, 16))).join(''));