问题
Is there a way to handle very large files(like 2GB and over) locally in JavaScript without crashing the browser?
*I am aware of the input tag and the FileReader API, but it seems there is nothing like Node.js streams.
回答1:
FileReader enables you to read contents of files asynchronously. With respect to large file (2GB in your case), you can use function/method FileReader.readAsArrayBuffer() to read a certain chunk size of a file in the memory hence this won't crash your browser, this blog is a good example.
来源：https://stackoverflow.com/questions/53237829/how-to-load-large-local-files-using-javascript