Open local text file with javascript

Question

I am trying to write a JavaScript program that reads a local txt file and Safes the Content into an Array. (just an offline JavaScript) I already tried many different methods, but None of them is working:

The activeXObject solution is not working. Server based php Code is not working. FileReader API is not working.

Possible dublicate of https://stackoverflow.com/questions/14446447/javascript-read-local-text-file — Ayaz Ali Shah, Jul 13 '17 at 06:40
I also saw this link above and tried all the possibilities, but None of them is working for me!! — helloimthomas, Jul 13 '17 at 06:45
are you trying to write a web page that reads a file from an end users computer without any interaction from the user? if so, you can't do that. You can only read a file the user wishes you to read (drag/drop or file picker type thing) — Jaromanda X, Jul 13 '17 at 06:46
I'm trying to read a local text file only by having the filepath. Is that not possible in JavaScript? :/ — helloimthomas, Jul 13 '17 at 06:48
Basically when i click a specific button on the html page, the program should read the Content of a .txt file in an Array in the Background just to have some Information (that i Need). — helloimthomas, Jul 13 '17 at 06:50
Possible duplicate of [Javascript - read local text file](https://stackoverflow.com/questions/14446447/javascript-read-local-text-file) — Skipper, Jul 13 '17 at 06:50
You need to tell us more about your environment. Is your code running in a browser, on a server (node.js), or some other environment? — Derek 朕會功夫, Jul 13 '17 at 06:53
my Code is running in a browser. I'm working on a file Manager and i came to the solution that reading a Textfile, where some paths are saved, is the best Option. — helloimthomas, Jul 13 '17 at 06:55
But if you have a non-server-based solution for reading all file-names in a local Directory on my PC (preferable with javascript) and print them out on the html page..... then please let me know. — helloimthomas, Jul 13 '17 at 06:57

score 1 · Answer 1 · edited Aug 15 '17 at 13:06

Try this:

<script type="text/javascript">
    function readFile(file){

        if(file.files && file.files[0]){
            var reader = new FileReader();

            reader.onload = function (e) {  
                var input = e.target.result;
                var output = input.split("\n").filter(/./.test, /\@/).join("\n");

                document.getElementById('main').innerHTML = output;
            };
            reader.readAsText(file.files[0]);
        }
    }
</script>

Open local text file with javascript

1 Answers1