问题
How can I convert input file(image,for example) to byte array by using Angular2 ? Maybe someone can say what is better: convert image to byte array and send it to Web API or send the File "object" to API and there convert it?
回答1:
You wouldn't really use Angular for solving this task. JavaScript has APIs for handling File data, e.g. https://developer.mozilla.org/en-US/docs/Web/API/FileReader/readAsArrayBuffer
See this question
PS: "Angular 2" is just called "Angular" now, because they're on version 4: http://angularjs.blogspot.com/2016/12/ok-let-me-explain-its-going-to-be.html
Unless you mean you are using an older version of Angular.
来源：https://stackoverflow.com/questions/45267800/convert-file-to-byte-array-angular-2