JavaScript: Convert string boolean to boolean, suports objects, arrays recursivelly.

convertStringBoolean.js

/**
 * Convert string booleans to boolean
 * @param {Array, Object, String} date
 * @returns {Array, Object, String, Boolean}
 */
const convertStringBoolean = (data) => {
  if (Array.isArray(data)) return data.map(d => convertStringBoolean(d))
  if (typeof data === 'object') {
    for (const key in data) {
      data[key] = convertStringBoolean(data[key])
    }
  }
  if (typeof data === 'string' && (data === 'true' || data === 'false')) return data === 'true'

  return data
}