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273 packages found
Better error handling for undefined values in nested objects.
- undefined
- null
- null-conditional
- null-conditional operator
- null conditional operator
- undy
- nested object
- nested object retrieval
- nested
Safe and simple PHP isset() for JavaScript
A logic Utility. Nil is: null or undefined. Make writing node easier, prettier and less error prone. Writes and reads more like prose
Used to check if some of the arguments are null or undefined.
Return the first argument that is `!= null`
not nil map - Map a function over nullable value
Helps you confirm the existence of specified falsy values (e.g. 0)
Test if a value is a JavaScript primitive.
- stdlib
- stdassert
- assertion
- assert
- utilities
- utility
- utils
- util
- valid
- primitive
- string
- number
- null
- undefined
- View more
Run a block of code safely and quietly.
Convert any value into a boolean value.
> A simple function to validate if nested object properties exist.
Returns true if the given is falsey (according to JavaScript) or matches a 'falsey' keyword.
Maybe function wrapper
When you need validate the variable data type
Safe chaining of object properties and functions using ES2015 Proxy.
Check if a variable in a nested object is defined and optionally also check its type. Useful for verifying API responses.
Access and chain object properties and methods in a safe manner.
- es6
- proxy
- deep
- object
- tresspass
- properties
- property
- null
- undefined
- propagation
- chain
- existential
- operator
- optional
Test if a value is undefined or null.
- stdlib
- stdassert
- assertion
- assert
- utilities
- utility
- utils
- util
- undefined
- void
- null
- is
- isundefined
- isnull
- View more
Better handle empty value issues in javascript objects.