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npmjs.org "undefined" keyword

@bemoje/is-undefined 3.0.4
Check whether the provided value is undefined.
32 versions - Latest release: about 4 years ago - 5 dependent packages - 3 dependent repositories - 18 downloads last month - 0 stars on GitHub - 1 maintainer
Top 9.5% on npmjs.org
is-null 1.0.1
Checks if the given value is null.
3 versions - Latest release: about 8 years ago - 14 dependent packages - 4 dependent repositories - 64 downloads last month - 2 stars on GitHub - 1 maintainer
@feizheng/next-filter-nil 1.0.4
Filter null/undefined value.
4 versions - Latest release: over 4 years ago - 1 dependent package - 5 downloads last month - 0 stars on GitHub - 1 maintainer
Top 5.8% on npmjs.org
coalescy 1.0.0
Simple function that return the first non null or undefined argument
1 version - Latest release: about 9 years ago - 11 dependent packages - 34,655 dependent repositories - 402 thousand downloads last month - 1 stars on GitHub - 1 maintainer
Top 5.9% on npmjs.org
itype 3.0.1
Improved type check
10 versions - Latest release: over 4 years ago - 3 dependent packages - 47 dependent repositories - 1.07 thousand downloads last month - 3 stars on GitHub - 1 maintainer
is-empty-null-undef-nan-whitespace 1.0.3
Utilities to determine if string is any of the following null, empty, undefined, NaN, or whitespace.
4 versions - Latest release: about 4 years ago - 1 dependent package - 1 dependent repositories - 7 downloads last month - 0 stars on GitHub - 1 maintainer
@exodus/walletconnect-window-getters 1.0.1-exodus.0
Safe Window Getters
2 versions - Latest release: about 1 year ago - 2 dependent packages - 2.37 thousand downloads last month - 61 stars on GitHub - 100 maintainers
Top 2.1% on npmjs.org
@walletconnect/window-getters 1.0.1
Safe Window Getters
3 versions - Latest release: over 1 year ago - 22 dependent packages - 10,591 dependent repositories - 1.72 million downloads last month - 61 stars on GitHub - 8 maintainers
ifnotundefined 0.0.2
A shorthand helper function for the pattern: const x = (typeof y !== 'undefined' ? y : 'default-v...
2 versions - Latest release: over 7 years ago - 2 dependent packages - 1 dependent repositories - 5 downloads last month - 0 stars on GitHub - 1 maintainer
classnames-undefined 1.0.0
Wrap the classnames package for better behavior for react16
1 version - Latest release: over 6 years ago - 1 dependent package - 1 dependent repositories - 176 downloads last month - 0 stars on GitHub - 1 maintainer
find-undefinedness 1.1.4
Return dotted keys containing undefined values within an object including deeply nested objects
6 versions - Latest release: over 7 years ago - 1 dependent package - 1 dependent repositories - 33 downloads last month - 4 stars on GitHub - 1 maintainer
@rslike/std 3.0.0
JavaScript Standard library without udndefined behavior!
21 versions - Latest release: about 2 months ago - 1.58 thousand downloads last month - 8 stars on GitHub - 1 maintainer
@rslike/cmp 3.0.0
JavaScript Comparison package without undefined behavior!
9 versions - Latest release: about 2 months ago - 103 downloads last month - 8 stars on GitHub - 1 maintainer
Top 2.3% on npmjs.org
typechecker 9.3.0 💰
Utilities to get and check variable types (isString, isPlainObject, isRegExp, etc)
135 versions - Latest release: 5 months ago - 50 dependent packages - 15,842 dependent repositories - 809 thousand downloads last month - 47 stars on GitHub - 1 maintainer
Top 2.1% on npmjs.org
undefsafe 2.0.5 💰
Undefined safe way of extracting object properties
13 versions - Latest release: over 2 years ago - 119 dependent packages - 1,025,859 dependent repositories - 21.5 million downloads last month - 71 stars on GitHub - 1 maintainer
lodash-decipher 0.3.4
LoDash Mixins from Decipher, Inc.
10 versions - Latest release: about 9 years ago - 2 dependent packages - 1 dependent repositories - 10 downloads last month - 3 stars on GitHub - 1 maintainer
undefined-to-null 1.0.6
Convert undefined properties of an object to null and back again.
7 versions - Latest release: over 1 year ago - 10 downloads last month - 0 stars on GitHub - 1 maintainer
graphql-query-vars-cleaner 1.9.3
Remove undefined variables from a GraphQL query
24 versions - Latest release: almost 3 years ago - 1 dependent package - 28 downloads last month - 1 stars on GitHub - 1 maintainer
is-not-defined 1.0.1
checks if foo is not defined, i.e. undefined, null, an empty string, array, object or NaN
1 version - Latest release: almost 4 years ago - 1 dependent package - 1 dependent repositories - 3 downloads last month - 0 stars on GitHub - 1 maintainer
definisure-js 1.0.0
A library to ensure that all of your values are definite
1 version - Latest release: about 1 year ago - 5 downloads last month - 0 stars on GitHub - 1 maintainer
@iarkaroy/utils 0.2.0
Common javascript functions
4 versions - Latest release: about 6 years ago - 1 dependent package - 1 dependent repositories - 3 downloads last month - 0 stars on GitHub - 1 maintainer
nullify-undefined 0.2.0
Better handle empty value issues in javascript objects.
4 versions - Latest release: about 1 year ago - 18 downloads last month - 1 stars on GitHub - 1 maintainer
koishi-plugin-material-theme-undefined 0.1.1
[Included in k2345security] Undefined Theme, nothing can be displayed at all
3 versions - Latest release: about 1 year ago - 1 dependent package - 138 downloads last month - 1 maintainer
@bemoje/is-args-defined 1.0.1
Returns whether or not the passed arguments are defined - ie. not undefined
2 versions - Latest release: about 4 years ago - 2 dependent packages - 2 dependent repositories - 8 downloads last month - 0 stars on GitHub - 1 maintainer
Top 2.4% on npmjs.org
es-to-primitive 1.2.1 💰
ECMAScript “ToPrimitive” algorithm. Provides ES5 and ES2015 versions.
6 versions - Latest release: over 4 years ago - 1,100 dependent packages - 5,928 dependent repositories - 115 million downloads last month - 22 stars on GitHub - 1 maintainer
validol 1.2.2
util for validation that object has defined props
6 versions - Latest release: over 7 years ago - 1 dependent package - 25 dependent repositories - 979 downloads last month - 5 stars on GitHub - 1 maintainer
Top 7.5% on npmjs.org
rundef 1.2.6
Remove undefined properties from object
4 versions - Latest release: almost 5 years ago - 2 dependent packages - 3 dependent repositories - 1.59 thousand downloads last month - 3 stars on GitHub - 1 maintainer
ndfo 0.8.0
Undefined object class wrapper.
9 versions - Latest release: almost 7 years ago - 3 dependent packages - 69 dependent repositories - 39 downloads last month - 0 stars on GitHub - 1 maintainer
undefined-is-a-function 0.1.0 💰
I fixed the internet!
2 versions - Latest release: over 6 years ago - 1 dependent repositories - 18 downloads last month - 240 stars on GitHub - 1 maintainer
array-has-value 1.0.2
Checks if the given array has the search item (Type: string | number | boolean | object | array |...
3 versions - Latest release: over 1 year ago - 3 dependent packages - 1 dependent repositories - 25 downloads last month - 0 stars on GitHub - 1 maintainer
@typeforce/is-undefined 1.0.1
Determine if a value is `undefined`
2 versions - Latest release: over 6 years ago - 2 dependent packages - 1 dependent repositories - 5 downloads last month - 1 maintainer
babel-plugin-transform-hasnil 0.1.5
use hasNil to traverse chained object properties and check for null or undefined values
6 versions - Latest release: over 6 years ago - 1 dependent package - 1 dependent repositories - 9 downloads last month - 0 stars on GitHub - 1 maintainer
is-empty-input 1.1.0
A simple package to check if input is null, undefined, or an empty string
4 versions - Latest release: about 1 month ago - 42 downloads last month - 2 stars on GitHub - 1 maintainer
Top 3.2% on npmjs.org
falsey 1.0.0 💰
Returns true if the given is falsey (according to JavaScript) or matches a 'falsey' keyword.
7 versions - Latest release: about 6 years ago - 61 dependent packages - 6,211 dependent repositories - 666 thousand downloads last month - 7 stars on GitHub - 2 maintainers
isdefined 1.0.1
Utilities for working with undefined properties
7 versions - Latest release: over 9 years ago - 2 dependent packages - 2 dependent repositories - 64 downloads last month - 2 stars on GitHub - 1 maintainer
@spbarker/null-or-empty 1.0.0
Helper function to determine if something is undefined, null or empty
1 version - Latest release: over 6 years ago - 2 dependent packages - 1 dependent repositories - 2 downloads last month - 1 stars on GitHub - 1 maintainer
Top 9.4% on npmjs.org
@stdlib/assert-is-primitive 0.2.1 💰
Test if a value is a JavaScript primitive.
11 versions - Latest release: 3 months ago - 3 dependent packages - 13 dependent repositories - 496 downloads last month - 2 stars on GitHub - 4 maintainers
@stdlib/assert-is-undefined-or-null 0.2.1 💰
Test if a value is undefined or null.
12 versions - Latest release: 3 months ago - 1 dependent package - 97 downloads last month - 2 stars on GitHub - 4 maintainers
@stdlib/assert-is-undefined 0.2.1 💰
Test if a value is undefined.
12 versions - Latest release: 3 months ago - 5 dependent packages - 1 dependent repositories - 728 downloads last month - 1 stars on GitHub - 4 maintainers
@writetome51/has-value-no-value 2.0.0
2 functions that check if argument is undefined or null
4 versions - Latest release: almost 4 years ago - 18 dependent packages - 11 dependent repositories - 42 downloads last month - 0 stars on GitHub - 1 maintainer
nice-require 1.1.0
Tries to import a module. Ignores any error that occurs.
2 versions - Latest release: 9 months ago - 6 downloads last month - 0 stars on GitHub - 1 maintainer
get-n-log 0.1.0
Escape the dreaded Uncaught TypeError: Cannot read property 'a' of undefined
2 versions - Latest release: over 5 years ago - 1 dependent package - 1 dependent repositories - 12 downloads last month - 0 stars on GitHub - 1 maintainer
nullish-math 0.0.6
`nullish-math` is a lightweight TypeScript package that provides basic math operations with suppo...
6 versions - Latest release: about 1 year ago - 5 downloads last month - 0 stars on GitHub - 1 maintainer
nnmap 1.0.0
not nil map - Map a function over nullable value
1 version - Latest release: almost 7 years ago - 1 dependent package - 1 dependent repositories - 86 downloads last month - 0 stars on GitHub - 1 maintainer
neatutil.optional 1.0.2
A TypeScript isomorphic adaptation of Java's Optional.
3 versions - Latest release: 12 months ago - 8 downloads last month - 0 stars on GitHub - 1 maintainer
check-defined 1.0.1
Simple utility function for checking isDefined for complex objects with long property paths
2 versions - Latest release: almost 9 years ago - 1 dependent package - 1 dependent repositories - 55 downloads last month - 1 maintainer
@zippytech/assign-defined 2.0.0
Object.assign that skips any undefined properties from source objects
1 version - Latest release: over 7 years ago - 1 dependent package - 1 dependent repositories - 2 downloads last month - 1 maintainer
assign-defined 1.0.5
Object.assign that skips any undefined properties from source objects
6 versions - Latest release: almost 8 years ago - 4 dependent packages - 1 dependent repositories - 8 downloads last month - 1 maintainer
isset-php 1.0.7
Safe and simple PHP isset() for JavaScript
7 versions - Latest release: over 2 years ago - 1 dependent package - 4 dependent repositories - 116 downloads last month - 0 stars on GitLab.com - 1 maintainer
clean-undefined 1.0.1
Delete object fields of undefined.
2 versions - Latest release: almost 6 years ago - 1 dependent package - 1 dependent repositories - 5 downloads last month - 1 stars on GitHub - 1 maintainer
nullfined 1.1.0
Convert any null value to undefined
4 versions - Latest release: over 5 years ago - 4 dependent packages - 2 dependent repositories - 145 downloads last month - 2 stars on GitHub - 1 maintainer
nou 0.0.1
shortcut methods for util.isNullOrUndefined
1 version - Latest release: almost 6 years ago - 1 dependent package - 1 dependent repositories - 7 downloads last month - 0 stars on GitHub - 1 maintainer
is-valid-value 1.0.2
It is an npm package to validate if the value is null, empty or undefined
3 versions - Latest release: over 3 years ago - 1 dependent package - 1 dependent repositories - 12 downloads last month - 0 stars on GitHub - 1 maintainer
babel-plugin-define-undefined-type 0.1.3
define string literal type
4 versions - Latest release: over 6 years ago - 1 dependent package - 1 dependent repositories - 7 downloads last month - 0 stars on GitHub - 1 maintainer
check-empty-json 0.0.3
The package provides methods to check whether a JSON object or a JSON array is empty or not. - Th...
3 versions - Latest release: almost 3 years ago - 1 dependent package - 7 downloads last month - 0 stars on GitHub - 1 maintainer
explodey 1.0.1
Utility for disallowing/preventing accessing undefined properties on Javscript objects.
2 versions - Latest release: about 6 years ago - 1 dependent package - 1 dependent repositories - 6 downloads last month - 1 stars on GitHub - 1 maintainer
eye-functions 1.0.3
4 versions - Latest release: over 3 years ago - 1 dependent package - 4 downloads last month - 1 maintainer
@hunterhod/env-var-not-defined 1.2.2
Gracefully handle environment variables being undefined in Node.js applications
5 versions - Latest release: over 4 years ago - 3 dependent packages - 2 dependent repositories - 5 downloads last month - 0 stars on GitHub - 1 maintainer
safe-get-async 1.0.0
Forget about "can't read [METHOD_NAME] of undefined" type of errors with this simple helper
1 version - Latest release: over 6 years ago - 1 dependent repositories - 5 downloads last month - 1 maintainer
null-undefined-guard 1.0.0
Guard against null and undefined values
1 version - Latest release: about 3 years ago - 1 dependent package - 3 downloads last month - 0 stars on GitHub - 1 maintainer
ts-undefined-partial 1.0.2
TypeScript recursive conversion between optional (partial) and undefined properties.
3 versions - Latest release: 8 months ago - 112 thousand downloads last month - 1 stars on GitHub - 1 maintainer
isnotnull 0.8.1
returns true if its argument is neither null nor undefined.
2 versions - Latest release: over 5 years ago - 3 dependent packages - 2 dependent repositories - 13 downloads last month - 0 stars on GitHub - 1 maintainer
uo.js 0.2.0
Aims to solve the problem of this error. When there is a complex object such us:
3 versions - Latest release: about 8 years ago - 1 dependent repositories - 9 downloads last month - 0 stars on GitHub - 1 maintainer
@u-connect/window-getters 2.1.2
Safe Window Getters
3 versions - Latest release: about 1 year ago - 4 dependent packages - 5 downloads last month - 1 maintainer
declared 0.1.0
Return the first argument that is "!= undefined" (or "!= null", which is the same thing)
1 version - Latest release: over 9 years ago - 2 dependent packages - 10 dependent repositories - 85 downloads last month - 0 stars on GitHub - 1 maintainer
Top 9.6% on npmjs.org
@doubco/wtf 1.0.1
Type checker for JS
6 versions - Latest release: over 2 years ago - 3 dependent packages - 2 dependent repositories - 41 downloads last month - 3 stars on GitHub - 1 maintainer
@9fv.io/undefined-error 1.0.0
An exception class to throw undefined error.
1 version - Latest release: over 6 years ago - 10 dependent packages - 13 dependent repositories - 6 downloads last month - 0 stars on GitHub - 1 maintainer
@zerodep/is-undefined 2.0.7
A utility to determine if a value is undefined
5 versions - Latest release: 3 months ago - 9 downloads last month - 5 stars on GitHub - 1 maintainer
Top 9.4% on npmjs.org
optval 1.0.1
Tiny module for setting a default value when a parameter is undefind or null
2 versions - Latest release: over 9 years ago - 6 dependent packages - 18 dependent repositories - 557 downloads last month - 0 stars on GitHub - 1 maintainer
Top 6.9% on npmjs.org
window-getters 1.0.1
Safe Window Getters
2 versions - Latest release: over 3 years ago - 10 dependent packages - 1,264 dependent repositories - 19.5 thousand downloads last month - 0 stars on GitHub - 1 maintainer
lodash-es-merge-undefined 1.1.0
a version of merge that does overwrite undefined values
6 versions - Latest release: about 2 years ago - 2 dependent packages - 997 downloads last month - 0 stars on GitHub - 1 maintainer
possible-js 2.0.11
Monadic library to help with Typescripts --strictNullChecks
14 versions - Latest release: almost 5 years ago - 1 dependent package - 1 dependent repositories - 21 downloads last month - 1 maintainer
defined-only-object 1.0.0
An object that will throw an exception if a user tries to access an undefined property
1 version - Latest release: about 7 years ago - 1 dependent package - 1 dependent repositories - 4 downloads last month - 0 stars on GitHub - 1 maintainer
isdotjs 3.0.0
JavaScript Isser library.
7 versions - Latest release: over 4 years ago - 1 dependent package - 1 dependent repositories - 18 downloads last month - 11 stars on GitHub - 1 maintainer
Top 2.7% on npmjs.org
just-flush 2.3.0
returns a copy of an array or object with null/undefined members removed
11 versions - Latest release: over 1 year ago - 7 dependent packages - 5 dependent repositories - 24.5 thousand downloads last month - 5,654 stars on GitHub - 1 maintainer
trim-call 1.1.0
Drops undefined arguments from the end of a function call.
2 versions - Latest release: over 4 years ago - 1 dependent package - 87 dependent repositories - 6.98 thousand downloads last month - 0 stars on GitHub - 1 maintainer
get-safely 1.0.0
Run a block of code safely and quietly.
1 version - Latest release: almost 10 years ago - 1 dependent package - 1 dependent repositories - 16 downloads last month - 0 stars on GitHub - 1 maintainer
@bemoje/assert-args 1.0.2
Assert that the passed arguments are defined.
3 versions - Latest release: about 4 years ago - 31 dependent packages - 2 dependent repositories - 7 downloads last month - 0 stars on GitHub - 1 maintainer
@bemoje/assert-array-like 1.0.1
Throw TypeError if not a value is array-like. The undefined value always evaluates to true.
2 versions - Latest release: about 2 years ago - 1 dependent package - 7 downloads last month - 0 stars on GitHub - 1 maintainer
first-defined 1.0.0
Return the first defined item in an array
1 version - Latest release: almost 3 years ago - 1 dependent package - 4 downloads last month - 1 stars on GitHub - 1 maintainer
v_rifier 1.1.0
Simple to use and quite flexible Data Validator/Verifier for Web and Node.js applications.
20 versions - Latest release: 4 months ago - 3 dependent repositories - 87 downloads last month - 0 stars on GitHub - 1 maintainer
filter-blanks-from-array 1.0.1
Function that filters undefined items from an array.
2 versions - Latest release: over 9 years ago - 1 dependent package - 1 dependent repositories - 3 downloads last month - 0 stars on GitHub - 2 maintainers
deep-null-check 1.0.5
This library is to check for null and undefined values in JSON objects
6 versions - Latest release: about 4 years ago - 1 dependent package - 17 downloads last month - 0 stars on GitHub - 1 maintainer
emptiness-check 1.0.1
To check if the input is null, undefined, empty string, empty array, or an empty object
2 versions - Latest release: about 1 month ago - 111 downloads last month - 0 stars on GitHub - 1 maintainer
@safejs/serializer 0.1.3
Serializer is a superset of JSON that includes recursive objects, dates, regular expressions, fun...
4 versions - Latest release: over 3 years ago - 2 dependent packages - 1 dependent repositories - 91 downloads last month - 1 stars on GitHub - 1 maintainer
babel-plugin-shield 1.0.0
A babel plugin to shield code against undefined properties
1 version - Latest release: over 7 years ago - 1 dependent package - 1 dependent repositories - 542 downloads last month - 2 maintainers
Top 6.5% on npmjs.org
not-defined 3.0.5 💰
checks if foo is not defined, i.e. undefined, null, an empty string, array, object or NaN
18 versions - Latest release: about 3 years ago - 12 dependent packages - 33 dependent repositories - 350 downloads last month - 4 stars on GitHub - 1 maintainer
Top 9.4% on npmjs.org
isnullorempty 1.0.1
Check if a given object is null or empty
2 versions - Latest release: over 7 years ago - 2 dependent packages - 1 dependent repositories - 213 downloads last month - 1 maintainer
mopped 0.0.0
Remove undefined from json object or array
1 version - Latest release: about 2 years ago - 1 dependent package - 334 downloads last month - 0 stars on GitHub - 1 maintainer
sparejs 0.4.0
default value `typeof value === 'undefined'? 'defaultValue': value` syntactic sugar
7 versions - Latest release: almost 7 years ago - 4 dependent packages - 1 dependent repositories - 28 downloads last month - 0 stars on GitHub - 1 maintainer
access-safe 0.1.0
A lightweight package that makes dealing with Cannot read property of undefined errors easy in a ...
1 version - Latest release: about 6 years ago - 3 dependent packages - 5 dependent repositories - 10 downloads last month - 1 stars on GitHub - 1 maintainer
Top 5.4% on npmjs.org
validate.io-undefined 1.0.3
Validates if a value is undefined.
5 versions - Latest release: about 9 years ago - 26 dependent packages - 6,078 dependent repositories - 20.6 thousand downloads last month - 2 stars on GitHub - 1 maintainer
Top 5.7% on npmjs.org
is-nil 1.0.1
Checks if the given value is null or undefined
3 versions - Latest release: about 8 years ago - 38 dependent packages - 1,562 dependent repositories - 1 million downloads last month - 0 stars on GitHub - 1 maintainer
defined-type-guard 1.0.1
A TypeScript Type-Guard for Filtering out undefined Values
1 version - Latest release: over 2 years ago - 1 dependent package - 5 downloads last month - 0 stars on GitHub - 1 maintainer
discord-commandis 2.0.0
a commandIs framework for discord.js shoutout to my boi itsPrime the greatest fucking youtuber of...
3 versions - Latest release: about 7 years ago - 1 dependent package - 1 dependent repositories - 7 downloads last month - 1 maintainer
warn-undefined 1.0.0
A simple wrapper around an object that will warn when you access keys that aren't defined (using ...
1 version - Latest release: over 8 years ago - 1 dependent repositories - 3 downloads last month - 1 stars on GitHub - 1 maintainer
validate.io 2.0.7
Validation utilities.
19 versions - Latest release: over 8 years ago - 1 dependent package - 2 dependent repositories - 33 downloads last month - 13 stars on GitHub - 1 maintainer
Top 5.8% on npmjs.org
is-nil-x 2.1.1
Checks if `value` is `null` or `undefined`.
47 versions - Latest release: almost 5 years ago - 21 dependent packages - 5,362 dependent repositories - 22.7 thousand downloads last month - 1 stars on GitHub - 1 maintainer
wtf-is-this 0.0.5
Type checker for JS
5 versions - Latest release: over 4 years ago - 5 dependent packages - 3 dependent repositories - 21 downloads last month - 3 stars on GitHub - 1 maintainer
tsjmaybe 1.1.0
Maybe is a type with tow variantes Some and None, can have nothing (None) or some value (Some). ...
7 versions - Latest release: almost 3 years ago - 19 downloads last month - 5 stars on GitHub - 1 maintainer
Related Keywords
null 154 object 78 javascript 57 array 52 typescript 42 string 40 type 40 check 40 boolean 35 is 33 number 32 empty 32 function 25 defined 25 optional 24 value 21 nodejs 19 validate 18 util 18 typeof 17 property 17 node 16 error 15 utility 15 validation 15 throw 13 assert 12 symbol 12 utils 12 clean 11 test 11 nullable 11 json 11 option 11 deep 11 void 11 primitive 11 safe 10 valid 10 utilities 10 properties 10 date 10 filter 10 maybe 10 false 9 nil 9 NaN 8 objects 8 isnull 8 recursive 8 falsy 8 not 8 plugin 8 js 8 nested 8 default 8 monad 8 arguments 7 proxy 7 es6 7 assertion 7 nullish 7 remove 7 regexp 7 truthy 7 true 7 window 7 guard 7 isundefined 7 get 7 react 6 nan 6 validator 6 integer 6 functional 6 variable 6 exception 6 getters 6 types 6 isomorphic 6 compare 6 verify 5 lodash 5 variables 5 parse 5 class 5 javascript-library 5 chaining 5 type-checking 5 recursively 5 set 5 convert 5 module 5 validate.io 5 keys 4 kind 4 map 4 isUndefined 4 isNumber 4 regex 4