Convert a mixed value into a boolean

to_boolean.js

/**
 * Convert a mixed value into a boolean
 *
 * @param {string|number|object} value
 * @returns {boolean}
 */
function toBoolean (value) {
  if (!value) return false
  if (typeof value === 'boolean') return value

  switch (value.toString().toLowerCase()) {
    case 'true':
    case 'yes':
    case '1':
      return true
    case 'false':
    case 'no':
    case '0':
    case null:
      return false
    default:
      return Boolean(value)
  }
}