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March 16, 2018 05:56
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Get function argument names
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| Object.defineProperty(Function.prototype, 'args', { | |
| get () { | |
| return this | |
| .toString() | |
| .replace(/\/\/.*$/mg,'') // COMMENT | |
| .replace(/\/\*.*?\*\//g, '') // COMMENT | |
| .replace(/\/.*?(?<!\\)\//g, '') // REGEXP | |
| .replace(/'.*?(?<!\\)'/g, '') //STRING | |
| .replace(/\s+/g,'') | |
| .split(')')[0] | |
| .split('(')[1] | |
| .split(',') | |
| .filter(a => !a.startsWith('...') && a !== '') | |
| .map(a => a.split('=')[0]) | |
| } | |
| }) |
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