blob: 677893c278a2e31f9671e83dd66fed51886cd258 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
|
# has-flag [](https://travis-ci.org/sindresorhus/has-flag)
> Check if [`argv`](https://nodejs.org/docs/latest/api/process.html#process_process_argv) has a specific flag
Correctly stops looking after an `--` argument terminator.
## Install
```
$ npm install has-flag
```
## Usage
```js
// foo.js
const hasFlag = require('has-flag');
hasFlag('unicorn');
//=> true
hasFlag('--unicorn');
//=> true
hasFlag('f');
//=> true
hasFlag('-f');
//=> true
hasFlag('foo=bar');
//=> true
hasFlag('foo');
//=> false
hasFlag('rainbow');
//=> false
```
```
$ node foo.js -f --unicorn --foo=bar -- --rainbow
```
## API
### hasFlag(flag, [argv])
Returns a boolean for whether the flag exists.
#### flag
Type: `string`
CLI flag to look for. The `--` prefix is optional.
#### argv
Type: `string[]`<br>
Default: `process.argv`
CLI arguments.
## License
MIT © [Sindre Sorhus](https://sindresorhus.com)
|
