1564396449
详细说明: - 添加了V2版本的工作流页面和结果页面 - 更新了Serena记忆文件 - 添加了详细实施计划文档 - 优化了Vite配置 - 更新了项目文档CLAUDE.md - 构建了演示系统的dist版本 - 包含了exhibition-demo的完整依赖
85 lines
2.7 KiB
Markdown
85 lines
2.7 KiB
Markdown
argparse
|
|
========
|
|
|
|
[](http://travis-ci.org/nodeca/argparse)
|
|
[](https://www.npmjs.org/package/argparse)
|
|
|
|
CLI arguments parser for node.js, with [sub-commands](https://docs.python.org/3.9/library/argparse.html#sub-commands) support. Port of python's [argparse](http://docs.python.org/dev/library/argparse.html) (version [3.9.0](https://github.com/python/cpython/blob/v3.9.0rc1/Lib/argparse.py)).
|
|
|
|
**Difference with original.**
|
|
|
|
- JS has no keyword arguments support.
|
|
- Pass options instead: `new ArgumentParser({ description: 'example', add_help: true })`.
|
|
- JS has no python's types `int`, `float`, ...
|
|
- Use string-typed names: `.add_argument('-b', { type: 'int', help: 'help' })`.
|
|
- `%r` format specifier uses `require('util').inspect()`.
|
|
|
|
More details in [doc](./doc).
|
|
|
|
|
|
Example
|
|
-------
|
|
|
|
`test.js` file:
|
|
|
|
```javascript
|
|
#!/usr/bin/env node
|
|
'use strict';
|
|
|
|
const { ArgumentParser } = require('argparse');
|
|
const { version } = require('./package.json');
|
|
|
|
const parser = new ArgumentParser({
|
|
description: 'Argparse example'
|
|
});
|
|
|
|
parser.add_argument('-v', '--version', { action: 'version', version });
|
|
parser.add_argument('-f', '--foo', { help: 'foo bar' });
|
|
parser.add_argument('-b', '--bar', { help: 'bar foo' });
|
|
parser.add_argument('--baz', { help: 'baz bar' });
|
|
|
|
console.dir(parser.parse_args());
|
|
```
|
|
|
|
Display help:
|
|
|
|
```
|
|
$ ./test.js -h
|
|
usage: test.js [-h] [-v] [-f FOO] [-b BAR] [--baz BAZ]
|
|
|
|
Argparse example
|
|
|
|
optional arguments:
|
|
-h, --help show this help message and exit
|
|
-v, --version show program's version number and exit
|
|
-f FOO, --foo FOO foo bar
|
|
-b BAR, --bar BAR bar foo
|
|
--baz BAZ baz bar
|
|
```
|
|
|
|
Parse arguments:
|
|
|
|
```
|
|
$ ./test.js -f=3 --bar=4 --baz 5
|
|
{ foo: '3', bar: '4', baz: '5' }
|
|
```
|
|
|
|
|
|
API docs
|
|
--------
|
|
|
|
Since this is a port with minimal divergence, there's no separate documentation.
|
|
Use original one instead, with notes about difference.
|
|
|
|
1. [Original doc](https://docs.python.org/3.9/library/argparse.html).
|
|
2. [Original tutorial](https://docs.python.org/3.9/howto/argparse.html).
|
|
3. [Difference with python](./doc).
|
|
|
|
|
|
argparse for enterprise
|
|
-----------------------
|
|
|
|
Available as part of the Tidelift Subscription
|
|
|
|
The maintainers of argparse and thousands of other packages are working with Tidelift to deliver commercial support and maintenance for the open source dependencies you use to build your applications. Save time, reduce risk, and improve code health, while paying the maintainers of the exact dependencies you use. [Learn more.](https://tidelift.com/subscription/pkg/npm-argparse?utm_source=npm-argparse&utm_medium=referral&utm_campaign=enterprise&utm_term=repo)
|