bbo/es/params_name.js

bbo is a utility library of zero dependencies for javascript.

/**
 * Gets all the formal parameter names of a function
 * https://www.zhihu.com/question/28912825
 */
function paramsName(fn) {
  return /\(\s*([\s\S]*?)\s*\)/.exec(fn.toString())[1].split(/\s*,\s*/);
}

export default paramsName;