CODEWITHSUNDEEP
flutterdart
delmin
delmin

Reputation: 2700

How to get the File Extension from a string Path

I've got file path saved in variable and I want to get the file type extension by using path package https://pub.dev/packages/path So far I managed to do it by splitting the string like this

final path = "/some/path/to/file/file.dart";
print(path.split(".").last); //prints dart

Is there any way to achieve this with path package?

Upvotes: 42

Views: 47681

Answers (3)

Yash
Yash

Reputation: 2033

No need of any extension. You can try below code snippet.

String _getFileExtension(String fileName) {
  try {
    return ".${fileName.split('.').last}";
  } catch (e) {
    return '';
  }
}

Upvotes: 13

Sartaj
Sartaj

Reputation: 159

This small function can parse filepath or url and find basename, extension and absolute path. It doesn't check file path exist and not check basename is folder or file.

  Map parsePath(String filepath) {
    Map p1 = new Map();
    int ind1 = filepath.indexOf("://");
    if (ind1 > 0) {
      p1["fullpath"] = filepath;
    } else {
      p1["fullpath"] = File(filepath).absolute.path;
    }
    p1["path"] = filepath;
    List<String> v = filepath.split("/");
    if (v.length > 1) {
      p1["basename"] = v.last;
    } else if (filepath.split("\\").length > 1) {
      p1["basename"] = filepath.split("\\").last;
    } else {
      p1["basename"] = v.last;
    }
    p1["extension"] = p1["basename"].split('.').last;
    if (p1["basename"] == p1["extension"]) p1["extension"] = "";
    return p1;
  }

Upvotes: 2

creativecreatorormaybenot
creativecreatorormaybenot

Reputation: 126734

You can use the extension function in the path package to get the extension from a file path:

import 'package:path/path.dart' as p;

final path = '/some/path/to/file/file.dart';

final extension = p.extension(path); // '.dart'

If your file has multiple extensions, like file.dart.js, you can specify the optional level parameter:

final extension = p.extension('file.dart.js', 2); // '.dart.js'

Upvotes: 93

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