fs.readdir ignore directories

Question

I would like to scan the folder, but ignore all the folders/directories that are included in it. All I have in the (C:/folder/) are .txt files and other folders, I just want to

Answer 1

Please See diraria's answer as it is more complete: my answer only works if ALL filenames contain a '.txt' extension.

why not just filter out files that end in ".txt"?

var fs = require("fs")
fs.readdirSync("./").filter(function(file) {
    if(file.indexOf(".txt")>-1)console.log(file)
})

I should have added previously that to get an array of these files you need to return them to an array as shown below.

var fs = require("fs")
let text_file_array = fs.readdirSync("./").filter(function(file) {
    if(file.indexOf(".txt")>-1) return file;
})