将 nodejs 的 Buffer 转换为浏览器的 javascript
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Convert nodejs' Buffer to browsers' javascript
提问by Fermuch
I'm converting my code from Node.js to browsers' javascript, but I have a problem with the Buffers in node.js. How can I use them in Javascript?
我正在将我的代码从 Node.js 转换为浏览器的 javascript，但是我在 node.js 中遇到了缓冲区问题。我如何在 Javascript 中使用它们？
Here's an example:
下面是一个例子：
new Buffer("foo", encoding='utf8')
<Buffer 66 6f 6f>
I need to transform [66, 6f, 6f] in javascript to "foo" and vice-versa. How can I do that? NOTE: this must be done without Node.js.
我需要将 javascript 中的 [66, 6f, 6f] 转换为“foo”，反之亦然。我怎样才能做到这一点？注意：这必须在没有 Node.js 的情况下完成。
采纳答案by Martin Heidegger
With https://github.com/substack/node-browserifyyou can work with buffers in the Browser by using: https://github.com/toots/buffer-browserify. However: this can be very slow in the browser: For faster access use https://github.com/chrisdickinson/bops
使用https://github.com/substack/node-browserify，您可以使用浏览器中的缓冲区：https: //github.com/toots/buffer-browserify。但是：这在浏览器中可能会很慢：为了更快地访问，请使用https://github.com/chrisdickinson/bops
回答by michaelhanson
There is no direct support for Buffer in browser-based JavaScript, and I am not aware of any compatibility library that implements the Buffer API (yet).
在基于浏览器的 JavaScript 中没有对 Buffer 的直接支持，而且我不知道有任何实现 Buffer API 的兼容库（目前）。
The equivalent functionality in the browser is provided by TypedArrays. You can learn about them here:
浏览器中的等效功能由 TypedArrays 提供。您可以在此处了解它们：
When porting a Node Buffer-based implementation to browser-based JavaScript, I found these answers helpful:
将基于 Node Buffer 的实现移植到基于浏览器的 JavaScript 时，我发现这些答案很有帮助：
回答by Glenjamin
To convert back to the string, use the buffer's toString method with a supplied encoding.
要转换回字符串，请使用缓冲区的 toString 方法和提供的编码。
http://nodejs.org/docs/latest/api/buffers.html#buffer.toString
http://nodejs.org/docs/latest/api/buffers.html#buffer.toString
var buffer = new Buffer("foo", "utf8");
var str = buffer.toString("utf8");
str === "foo";
