Ideal-Filename

Gets the ideal filename according to the given one.

API

• idealFilename(filename: string, extname:? string): Promise<string>
  • filename The original filename.
  • extname Sets a specified extension name.
• idealFilename(filename: string, callback: (err: Error, filename: string) => void): void;
• idealFilename(filename: string, extname: string, callback: (err: Error, filename: string) => void): void

This function will check if the given filename already exists, if not, the given filename will be returned, otherwise increase the filename with a number appended to the basename (before extname).

It's better to always pass the filename an absolute path, and the separators will always be converted to platform-specific ones.

Example

const idealFilename = require("ideal-filename");

idealFilename("index.js").then(filename => {
    console.log(filename); // => index (1).js
});

// Or
(async() => {
    var filename = await idealFilename("index.js");
    console.log(filename);
})();

// Or 
idealFilename("index.js", filename => {
    console.log(filename);
});