function readFile(binaryFile) {
let reader = new FileReader();
reader.readAsArrayBuffer(binaryFile);
// in success case, do something with result
reader.onload = function() {
console.log(reader.result);
};
// in error case, do something with result
reader.onerror = function() {
console.log(reader.error);
};
}
![[Web front-end] Node.js quick start](https://img.php.cn/upload/course/000/000/067/662b5d34ba7c0227.png)
Read this FileReader and try this function:
function readFile(binaryFile) { let reader = new FileReader(); reader.readAsArrayBuffer(binaryFile); // in success case, do something with result reader.onload = function() { console.log(reader.result); }; // in error case, do something with result reader.onerror = function() { console.log(reader.error); }; }with best regards!