vuikit/core/helpers/get-fn-args.js

A Vuejs component library based on UIkit

/**
* Vuikit 0.7.0
* (c) 2018 Miljan Aleksic
* @license MIT
*/

/**
 * Get the argument names of a function
 */
export default function (fn) {
  // first match everything inside the function argument parens
  var args = fn.toString().match(/function\s.*?\(([^)]*)\)/)[1]

  // split the arguments string into an array comma delimited
  return args.split(',')
    // ensure no inline comments are parsed and trim the whitespace
    .map(arg => arg.replace(/\/\*.*\*\//, '').trim())
    // ensure no undefined values are added
    .filter(arg => arg)
}