javascript - 以 Angular 将文件转换为 uInt8Array

Question

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Answer 1

只需从数组缓冲区输出构建一个 Uint8Array

file.arrayBuffer().then(buff => {
    let x = new Uint8Array(buff); // x is your uInt8Array
    // perform all required operations with x here.
});

根据问题应该是这样的

onFileSelected(event) {
     console.log("called");
     const file: File = event.target.files[0];
     if (file) {
         file.arrayBuffer().then(buff => {
             let x = new Uint8Array(buff); // x is your uInt8Array
             // perform all required operations with x here.
             console.log(x);
         });
         console.log("call finished");
     }
}