FilesExpand file tree

 lambda-support

/

unique.js

Copy path

Blame

More file actions

Blame

More file actions

Latest commit

 

History

History

History

24 lines (21 loc) · 809 Bytes

 lambda-support

/

unique.js

Top

File metadata and controls

• Code
• Blame

24 lines (21 loc) · 809 Bytes

Raw

Copy raw file

Download raw file

Open symbols panel

Edit and raw actions

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

/* -*- Mode: java; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*-

*

* This Source Code Form is subject to the terms of the Mozilla Public

* License, v. 2.0. If a copy of the MPL was not distributed with this

* file, You can obtain one at http://mozilla.org/MPL/2.0/. */

// unique.js: read the contents of a file and print out the unique lines

defineClass("File")

// "arguments[0]" refers to the first argument at the command line to the

// script, if present. If not present, "arguments[0]" will be undefined,

// which will cause f to read from System.in.

var f = new File(arguments[0]);

var o = {}

var line;

while ((line = f.readLine()) != null) {

// Use JavaScript objects' inherent nature as an associative

// array to provide uniqueness

o[line] = true;

}

for (i in o) {

print(i);

}