Login Register

util.isNull()

util.isNull(object)

Stability: 0 - Deprecated

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

const util = require('util');

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

Links:

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

doc_Nodejs

2016-04-30 04:43:05

Comments

Leave a Comment

Please login to continue.

Popular Articles

_.isNull isNull_.isNull(object) Returns true if the value of object is null. _.isNull(null); => true _.isNull(undefined); => false

ConditionInterface::isNull public ConditionInterface::isNull($field) Sets a condition that the specified field be NULL. Parameters $field: The name of the field to check. Retu

pandas.isnull() pandas.isnull(obj) [source] Detect missing values (NaN in numeric arrays, None/NaN in object arrays) Parameters: arr : ndarray or object value

_.isNull _.isNull(value) source npm package Checks if value is null. Since 0.1.0 Arguments value (*): The value to check. Returns (boolean): Returns true

IsNull class IsNull extends Constraint Constants DEFAULT_GROUP The name of the group given to all constraints with no explicit group. CLASS_CONSTRAINT