func-args
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ECMAScript Function Arguments parser, Get arguments of a function, useful for and used in dependency injectors. Works for regular functions, generator functions and arrow functions.
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Markdown
# func-args
ECMAScript Function Arguments parser, Get arguments of a function, useful for and used in dependency injectors. Works for regular functions, generator functions and arrow functions.
```nodemon
npm install func-args
```
## api
* [index.d.ts](index.d.ts)
* by default will throw error if func is native or bounded func
## demo
see [_tests.ts](test/_tests.ts)
```ts
import { parseFunc } from 'func-args';
let fn = async (a, b, c, {e, d, }, [aa1, aa2, { aaa3 }, [ bbb1, bbb2, { bbb4 } ], ...rrr], e2 = null, f = {
g: 7,
a: 8,
b: {
c: 555,
d: true,
},
},
f2 = (333), ...argv) => {};
let { args, params } = parseFunc(fn);
console.dir({
/**
* func args with structure
*/
args,
/**
* all func args name
*
* @type string[]
*/
params,
}, {
depth: 6,
});
/*
{ args:
[ 'a',
'b',
'c',
{ e: 'e', d: 'd' },
[ 'aa1',
'aa2',
{ aaa3: 'aaa3' },
[ 'bbb1', 'bbb2', { bbb4: 'bbb4' } ],
'...rrr' ],
'e2',
'f',
'f2',
'...argv' ],
params:
[ 'a',
'b',
'c',
'e',
'd',
'aa1',
'aa2',
'aaa3',
'bbb1',
'bbb2',
'bbb4',
'...rrr',
'e2',
'f',
'f2',
'...argv' ] }
*/
// skip throw error if func is native or bounded func
console.dir(parseFunc(Math.abs, true), {
depth: 6,
});
/*
{ type: undefined,
name: 'abs',
native: true,
generator: undefined,
async: undefined,
args: [],
params: [],
source: 'function abs() { [native code] }' }
*/
```