问题描述
如何将 ArrayBuffer 保存在 json 文件中?我为此使用了电子配置,但在 config.json 中我找到了{}".我尝试转换(代码) ArrayBuffer 到字符串,但是我不能将字符串转换为ArrayBuffer.
How to save an ArrayBuffer in json file? I use electron-config for this, but in config.json I found "{}". I try convert (code) ArrayBuffer to string, but then I can't convert string to ArrayBuffer.
put: function(key, value) { //value = { prop1: <ArrayBuffer>, prop2: <ArrayBuffer> } if (key === undefined || value === undefined || key === null || value === null) return; var prop1Str,prop2Str; prop1Str = this.ab2str(value.prop1); prop2Str = this.ab2str(value.prop2); var chValue = {prop1:prop1Str, prop2:prop2Str}; config.set(key,chValue); console.log(value.prop1 === this.str2ab(config.get(key).prop1)); //===> FALSE }, ab2str: function(buf) { return String.fromCharCode.apply(null, new Uint8Array(buf)); }, str2ab: function(str) { var buf = new ArrayBuffer(str.length); var bufView = new Uint16Array(buf); for (var i=0, strLen=str.length; i < strLen; i++) { bufView[i] = str.charCodeAt(i); } return buf; }
推荐答案
为了保存到磁盘,您应该能够使用普通节点 API 将内容写入磁盘.例如:
For saving to disk, you should be able to use the normal node APIs for writing something to disk. For example:
require('fs').writeFileSync('/path/to/saved/file', Buffer.from(myArrayBuffer));