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                合規國際互聯網加速 OSASE為企業客戶提供高速穩定SD-WAN國際加速解決方案。 廣告
                [TOC] >[success] # Blob類型數據轉換Json數據類型 ~~~ 'FileReader'對象允許Web應用程序異步讀取存儲在用戶計算機上的文件的內容,使用'File'或 'Blob'對象指定要讀取的文件或數據。 ~~~ <br/> >[success] ## 案例1 1. index.js ~~~ // 定義JSON數據 let data = { "name": "小明" }; // 轉換成字符串數組 let string = JSON.stringify(data); // 轉換成Blob類型數據 let blobData = new Blob([string]); console.log(blobData) // 打印Blob結果: Blob { size: 17, type: "" } let reader = new FileReader(); // 創建讀取文件對象 reader.addEventListener("loadend", function () { // let res = JSON.parse(reader.result); // 返回的數據 console.log(res,'返回結果數據') // { name: "小明" } }); reader.readAsText(blobData, 'utf-8'); // 設置讀取的數據以及返回的數據類型為utf-8 ~~~
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