@riophae/vue-treeselect/src/utils/warning.js

A multi-select component with nested options support for Vue.js

import { noop } from './noop'

export const warning = process.env.NODE_ENV === 'production'
  ? /* istanbul ignore next */ noop
  : function warning(checker, complainer) {
    if (!checker()) {
      const message = [ '[Vue-Treeselect Warning]' ].concat(complainer())
      // eslint-disable-next-line no-console
      console.error(...message)
    }
  }