How to use

_isString

function

in

lodash

describe('default connection url', () => {
  it('is a static member on the class', () => {
   assert.ok(_isString(WSv2.url) && !_isEmpty(WSv2.url))
  })
 })

const validArg = v => _isString(v) && !_isEmpty(v)

 assert.ok(_isString(args.url) && !_isEmpty(args.url), 'connection url not pulled from env')
 assert.strictEqual(args.url, url, 'provided url does not match env var')
})

const { type, message, level, image, link, sound } = opts
if (!_isString(type) || !_isString(message)) {
 throw new Error(`notified with invalid type/message: ${type}/${message}`)