In order to read a local file text through JavaScript using chrome, the chrome browser should run with the argument --allow-file-access-from-files to allow JavaScript to access local file, then you can read it using XmlHttpRequest like the following:

Nov 27, 2015 · I am trying to load a text file into my JavaScript file and then read the lines from that file in order to get information, and I tried the FileReader but it does not seem to be working. Can anyone help? function analyze(){ var f = new FileReader(); f.onloadend = function(){ console.log("success"); } f.readAsText("cities.txt"); }

In my case I want to read a local JSON file and show it in a html file on my desktop, that's all I have to do. Note: Don't try to automate the file uploading using JavaScript, even that's also not allowed due the same security restrictions imposed by browsers.

Nov 23, 2011 · I am able to read Excel file via FileReader but it outputs text as well as weird characters with it. I need to read xls file row-wise, read data in every column and convert it to JSON.

The string loaded from the file becomes accessible to JavaScript after being loaded. The `(backtick) character begins and ends a template literal , allowing for both " and ' characters in your text block.

In order to read a file chosen by the user, using a file open dialog, you can use the <input type="file"> tag. You can find information on it from MSDN . When the file is chosen you can use the FileReader API to read the contents.

So I have a "File" object (retrieved by handling file drag and drop from desktop). I can send the files to the server with ajax, and then throw them back for javascript to handle them. But is it possible to read the contents of it without doing all this? Here, play around with this fiddle. Drag any file to the box and use the variable file.

Dec 17, 2014 · @NGTHM4R3 yes I think readAsText() has an overloaded version that accepts the file encoding , just use it like this for example reader.readAsText(file, 'ISO-8859-1'); – Aminul Commented Jan 5, 2018 at 8:59

Apr 11, 2015 · As said, fs.readFile is an asynchronous action. It means that when you tell node to read a file, you need to consider that it will take some time, and in the meantime, node continued to run the following code.

Feb 28, 2017 · @OmarElDon, I do agree it's not clear what OP is trying to do, but still, my point is that your way of displaying an input's file is not the correct one. And you'll agree that your answer doesn't answer the question anyway. And OP never talked about local file (from the file:// protocol) so XHR would work, and img.src = url would work too. –