all files / src/ presence.js

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import Validators from './index'
import { isFileList } from './file'
import { prepareMsg, prepare, memoize } from './helpers'
 
 
let presence = memoize(function ({ message, msg, 'if': ifCond, unless }={}) {
  msg = msg || message
 
  return prepare(ifCond, unless, false, function (value) {
    if ('string' === typeof value ? !value.trim() : isFileList(value) && !isNaN(value.length) ? !value.length : !value) {
      return Validators.formatMessage(prepareMsg(msg, 'presence'))
    }
  })
})
 
export default presence