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18 packages found

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is-nan

ES2015-compliant shim for Number.isNaN - the global isNaN returns false positives.

ljharb
published version 1.3.2, 4 years ago80 dependents licensed under $MIT
31,177,305

mdn-polyfills

MDN polyfills

michal.jezierski
published version 5.20.0, 5 years ago75 dependents licensed under $MIT
155,669

is-nan-x

ES6-compliant shim for Number.isNaN - the global isNaN returns false positives.

xotic750
published version 2.1.1, 6 years ago9 dependents licensed under $MIT
17,447

number.isnan

ES2015-compliant shim for Number.isNaN - the global isNaN returns false positives.

ljharb
published version 1.0.0, 3 years ago0 dependents licensed under $MIT
366

cheesenan

CheeseNaN is a utility library for robust number validation in JavaScript and TypeScript, including precise NaN checks, mathematical utilities, and range validations.

nugetchar
published version 0.0.9, 20 days ago0 dependents licensed under $MIT
95

what-is

A very simple "typeof" detection

tvardy
published version 0.1.2-EOL, 8 years ago0 dependents licensed under $ISC
50

pp-is

Collection of methods for check

carlos-sweb
published version 1.2.3, 6 months ago5 dependents licensed under $MIT
56

typeanalyser

Provides type detection and analysis for ANY Javascript object (including custom types) in any environment, even where native operators falter.

themetaguy
published version 2.0.6, 2 years ago0 dependents licensed under $MIT
46

@outlinerisk/mdn-polyfills

MDN polyfills

outlineerik
published version 5.20.0, 6 years ago0 dependents licensed under $MIT
34

robb

Simple type checker in JavaScript.

baggz
published version 0.2.1, 13 years ago2 dependents
28

advance-javascript

a collection of javascript prototype extensions that make your javascript coding very easy and hanndy.

developergovindgupta
published version 1.0.4, 4 years ago0 dependents licensed under $ISC
42

wots

A very simple "typeof" detection

tvardy
published version 0.3.2, 4 years ago0 dependents licensed under $ISC
26

robb-clone

Simple type checker in JavaScript.

veselov
published version 0.2.2, 9 years ago0 dependents
21

locore

locore is a Standard library. the library with basic JavaScript methods to improve development efficiency.

qianduanka
published version 0.0.0-beta.1, a year ago0 dependents licensed under $ISC
21

is-non-nan-num

Widely supported version of Number.isNaN. Checks whether a value is a number and that it's not NaN.

nikolaa
published version 1.0.1, 4 years ago0 dependents licensed under $ISC
14

is-fin-num

Widely supported version of Number.isFinite. Checks whether a value is a finite number.

nikolaa
published version 1.0.0, 4 years ago0 dependents licensed under $ISC
10

js-util-type

A utility function to fix and extend the built-in ''typeof'' operator of JavaScript.

yanshaojing
published version 0.1.1, 7 years ago0 dependents licensed under $MIT
9

checkify-utils

A lightweight utility library for common JavaScript checks, including isEmpty, isNull, isNumber, isEmptyString, isArray, and isNaN. Useful for validation and data handling.

huyhoang1217
published version 1.0.0, 7 days ago0 dependents licensed under $ISC
0