How to read text file using Javascript?

Question

JavaScript

Hello. There is a need to process a text file line by line, for example, as it is done in C#. Unfortunately, I don't have much time to set up a server and I'm not good at it, so PHP is not an option. Can this work be done in Javascript?

Answer 1

Try like this :

function readTextFile(file)
{
    var rawFile = new XMLHttpRequest();
    rawFile.open("GET", file, false);
    rawFile.onreadystatechange = function ()
    {
        if(rawFile.readyState === 4)
        {
            if(rawFile.status === 200 || rawFile.status == 0)
            {
                var allText = rawFile.responseText;
                alert(allText);
            }
        }
    }
    rawFile.send(null);
}


readTextFile("file:///C:/your/path/to/file.txt");

Answer 2

Well, install node, and use https://nodejs.org/dist/latest-v6.x/docs/api/fs.html

Answer 3

Are you interested in working with JS in a browser environment?
If not, then you need Node.JS