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273 packages found
Test if a value is undefined or null.
- stdlib
- stdassert
- assertion
- assert
- utilities
- utility
- utils
- util
- undefined
- void
- null
- is
- isundefined
- isnull
- View more
Tools for testing against null and undefined values.
Library to scan inside passed value to convert null to undefined
Tries to import a module. Ignores any error that occurs.
Advanced Operators ready for safe-evaluate-expression
Detect references to undefined CSS classes
Next JavaScript Object Notation
Optional chaining with a recursive ES6 Proxy
- optional
- chaining
- never undefined
- undefined
- no undefined
- nested
- nested property
- property access
- properties
- object properties
Type safe variable checks
Simple method for defining a default value when a value is undefined
TypeScript recursive conversion between optional (partial) and undefined properties.
Basic sort algorithm that has similar behavior to Array.prototype.sort for null and undefined, but also support symbol.
- compare
- default
- array
- sort
- comparison
- comparer
- comparator
- type
- generic
- symbol
- number
- null
- undefined
- create-by-yarn-tool
Converts empty object,empty array, empty string,NaN,null or undefined into the string "N/A" else return the input as-is
A TypeScript isomorphic adaptation of Java's Optional.
- optional
- java
- util
- java-optional
- java-util-optional
- optional-value
- nullish
- nullish-value
- undefined
- void 0
- null
Test if a value is an array-like object containing only JavaScript primitives.
If value is null or undefined, it sets a default value instead.
A runtime assertion for preserving not-null and not-undefined invariants
Monadic library to help with Typescripts --strictNullChecks
Create response object instead of error throwing.
Classes for implementing different types of errors in the application.