小编Fah*_*oqi的帖子

我正在尝试将 blob 对象解析为 JavaScript 中的 base64 字符串。请帮忙。我的代码是

var reader = new FileReader();

reader.addEventListener("loadend", function () {
    // reader.result contains the contents of blob as a typed array
    var buffer = reader.result;
    var view = new Uint8Array(buffer);
    var binary = String.fromCharCode.apply(window, view);
    var base64 = btoa(binary);
    cb(base64);
    console.log(base64);
}); 

reader.readAsArrayBuffer(data.blob);