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295 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
Return the first argument that is `!= null`
Used to check if some of the arguments are null or undefined.
Null Logger transport for winston, it basically swallow all your log so nothing is logged, good for test environment.
empty js function like empty() in php
not nil map - Map a function over nullable value
Optionals for JS
Helps you confirm the existence of specified falsy values (e.g. 0)
Returns true if the given is falsey (according to JavaScript) or matches a 'falsey' keyword.
removes nulls and undefineds from an object
> A simple function to validate if nested object properties exist.
Better handle empty value issues in javascript objects.
Convert any value into a boolean value.
Safe chaining of object properties and functions using ES2015 Proxy.
Test if a value is a JavaScript primitive.
- stdlib
- stdassert
- assertion
- assert
- utilities
- utility
- utils
- util
- valid
- primitive
- string
- number
- null
- undefined
- View more
A small set of functions to check value against a specific type
- type
- check
- guard
- isNumber
- isArray
- isString
- checker
- isFinite
- undefined
- null
- primitive
- isFunction
- function
- isUndefined
Pipe streams to /dev/null
Implementation of Postgres SQL's coalesce function: return the first argument that is not null
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