bootstrap-vue/src/utils/inspect.js

BootstrapVue, with over 40 plugins and more than 75 custom components, provides one of the most comprehensive implementations of Bootstrap v4 components and grid system for Vue.js. With extensive and automated WAI-ARIA accessibility markup.

/**
 * Convenience inspection utilities
 */

import { isArray } from './array'
import { isObject, isPlainObject } from './object'

export const toType = val => typeof val

export const toRawType = val => Object.prototype.toString.call(val).slice(8, -1)

export const toRawTypeLC = val => toRawType(val).toLowerCase()

export const isUndefined = val => val === undefined

export const isNull = val => val === null

export const isFunction = val => toType(val) === 'function'

export const isBoolean = val => toType(val) === 'boolean'

export const isString = val => toType(val) === 'string'

export const isNumber = val => toType(val) === 'number'

export const isPrimitive = val => isBoolean(val) || isString(val) || isNumber(val)

export const isDate = val => val instanceof Date

export const isRegExp = val => toRawType(val) === 'RegExp'

export const isPromise = val =>
  !isUndefined(val) && !isNull(val) && isFunction(val.then) && isFunction(val.catch)

// Extra convenience named re-exports
export { isArray, isObject, isPlainObject }