Converting array buffer to string - Maximum call stack size exceeded(将数组缓冲区转换为字符串 - 超出最大调用堆栈大小)
问题描述
我们的应用下载了一个 zip 文件,但响应是二进制的.
Our app downloads a zip file, but the response is in binary.
所以我所做的就是将其转换为 base64.大小为87.7KB
时有效,但响应大小为183KB
时出错.
So what I did is to convert it to base64. It works when the size is 87.7KB
but an error occurs when the response size is 183KB
.
错误是Uncaught RangeError: Maximum call stack size exceeded
有问题的行是
btoa(String.fromCharCode.apply(null, new Uint8Array(blob)))
根据this answer,必须替换 String.fromCharCode.apply()
使用 TextEncoder
.
According to this answer, the String.fromCharCode.apply()
must be replaced with TextEncoder
.
所以我改成
btoa(new TextDecoder('utf-8').decode(new Uint8Array(blob)))
但我得到一个错误.
Uncaught DOMException: Failed to execute 'btoa' on 'Window': 要编码的字符串包含 Latin1 范围之外的字符.
我使用此answer
现在是新代码
btoa(unescape(encodeURIComponent(new TextDecoder('utf-8').decode(new Uint8Array(blob)))))
现在可以下载,但下载的 zip 文件已损坏.
The download now works but the download zip file is corrupted.
整个代码可见这里
推荐答案
我从另一个问题得到了答案
I got my answer from another question
btoa(new Uint8Array(blob).reduce(function (data, byte) {
return data + String.fromCharCode(byte);
}, ''));
来源
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