Search results

@zerodep/is-undefined

A utility to determine if a value is undefined

• is
• undefined
• type

cdepage

published 2.0.7 • 2 months agopublished 2.0.7 2 months ago

still-not

undefined is not a function and it's likely to remain so forever

• undefined
• is
• still
• not
• a
• function
• error

schwarzkopfb

published 1.0.3 • 7 years agopublished 1.0.3 7 years ago

@stdlib/assert-is-undefined

Test if a value is undefined.

• stdlib
• stdassert
• assertion
• assert
• utilities
• utility
• utils
• util
• undefined
• void
• is
• isundefined
• isvoid
• type
• View more

stdlib-bot

published 0.2.1 • 2 months agopublished 0.2.1 2 months ago

is-es6-generators

Check whether a value is a `Generator` or `GeneratorFunction`. The `co` way, more strict checking. Always return boolean true or false, never null or undefined.

• check
• es2015
• es6
• es7
• function
• functions
• generator
• generatorfunction
• generators
• is
• is-function
• is-generator
• is-generator-function
• next

tunnckocore

published 1.0.2 • 9 years agopublished 1.0.2 9 years ago

@nempet/is-null-or-undefined

Used to check if some of the arguments are null or undefined.

• is-null-or-undefined
• check
• null
• undefined
• is
• function
• argument
• multiple

nempet

published 1.0.3 • 3 years agopublished 1.0.3 3 years ago

is-it-set

A one-liner to check if a property is set (not null, undefined or empty string).

• is
• set
• is_set
• isset
• it
• is-it-set

brycehanscomb

published 1.0.3 • 8 years agopublished 1.0.3 8 years ago

isnullorempty

Check if a given object is null or empty

• null
• undefined
• empty
• is
• isnull
• isempty

herwin

published 1.0.1 • 7 years agopublished 1.0.1 7 years ago

isset-php

Safe and simple PHP isset() for JavaScript

• isset
• is
• set
• null
• undefined
• php
• javascript

enomws

published 1.0.7 • 2 years agopublished 1.0.7 2 years ago

jis

When you need validate the variable data type

• Is
• Array
• String
• Object
• Null
• Undefined
• Function
• Number

jose.can

published 1.0.36 • 3 years agopublished 1.0.36 3 years ago

is-def

Check if value is defined

• is
• defined
• null
• nan
• undefined

andrepolischuk

published 0.1.1 • 9 years agopublished 0.1.1 9 years ago

@stdlib/assert-is-undefined-or-null

Test if a value is undefined or null.

• stdlib
• stdassert
• assertion
• assert
• utilities
• utility
• utils
• util
• undefined
• void
• null
• is
• isundefined
• isnull
• View more

stdlib-bot

published 0.2.1 • 2 months agopublished 0.2.1 2 months ago

@zerodep/is-nil

A utility to determine if a value is null or undefined

• is
• nil
• type

cdepage

published 2.0.7 • 2 months agopublished 2.0.7 2 months ago

typechecker

Utilities to get and check variable types (isString, isPlainObject, isRegExp, etc)

• array
• assert
• assertion
• async
• async function
• async-function
• asyncFunction
• bool
• boolean
• browser
• check
• check-type
• checking
• class
• View more

bevryme

published 9.3.0 • 4 months agopublished 9.3.0 4 months ago

is-null-empty-or-undefined

npm test

• null
• empty
• undefined
• check
• is

grexlin85

published 1.0.1 • 4 years agopublished 1.0.1 4 years ago

@stdlib/assert-is-primitive

Test if a value is a JavaScript primitive.

• stdlib
• stdassert
• assertion
• assert
• utilities
• utility
• utils
• util
• valid
• primitive
• string
• number
• null
• undefined
• View more

stdlib-bot

published 0.2.1 • 2 months agopublished 0.2.1 2 months ago

ts-type-guards

Curried TypeScript type guards for primitive types and classes

• TypeScript
• type guards
• type
• guard
• isBoolean
• isNumber
• isString
• isSymbol
• isNull
• isUndefined
• isPrimitive
• isNonPrimitive
• is
• isLike
• View more

alling

published 0.7.0 • 4 years agopublished 0.7.0 4 years ago

is-nil

Checks if the given value is null or undefined

• check
• checks
• is
• nil
• detect
• value
• type
• null
• undefined
• void

bubkoo

published 1.0.1 • 8 years agopublished 1.0.1 8 years ago

uo.js

Aims to solve the problem of this error. When there is a complex object such us:

• undefined
• is
• not
• an
• object
• javascript

xilix

published 0.2.0 • 8 years agopublished 0.2.0 8 years ago

@stdlib/assert-is-primitive-array

Test if a value is an array-like object containing only JavaScript primitives.

• stdlib
• stdassert
• assertion
• assert
• utilities
• utility
• utils
• util
• valid
• array
• is
• isarray
• primitive
• string
• View more

stdlib-bot

published 0.2.1 • 2 months agopublished 0.2.1 2 months ago

validate.io-undefined

Validates if a value is undefined.

• validate.io
• validate
• validation
• validator
• undefined
• void
• is
• type
• check
• isundefined
• valid

kgryte

published 1.0.3 • 9 years agopublished 1.0.3 9 years ago