util.isNullOrUndefined()

util.isNullOrUndefined(object)

Stability: 0 - Deprecated

Returns true if the given "object" is null or undefined. Otherwise, returns false.

const util = require('util');

util.isNullOrUndefined(0)
  // false
util.isNullOrUndefined(undefined)
  // true
util.isNullOrUndefined(null)
  // true

Links:

https://nodejs.org/dist/latest-v5.x/docs/api/util.html#util_util_isnullorundefined_object

doc_Nodejs

2016-04-30 04:43:05

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