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273 packages found
An error to throw when undefined value is passed.
Type checker for JS
Undefined object class wrapper.
Escape the dreaded Uncaught TypeError: Cannot read property 'a' of undefined
coffeelint plugin that handles variables and their scope
A simple wrapper around an object that will warn when you access keys that aren't defined (using the magic of ES6 Proxies)
Just function to predicate non nullable with type guard.
- check
- is
- non-nullable
- nonnullable
- null
- undefined
- nullable
- present
- blank
- typescript
- type-guard
- filter
- type
- narrowing
- View more
👉 https://hyper.fun/c/carbon-icon-undefined/1.3.0
A shorthand helper function for the pattern: const x = (typeof y !== 'undefined' ? y : 'default-value');
A utility function to validate if a value is undefined
A utility function to validate if a value is null or undefined
Determine type of property.
All annexe nowt utility functions under namespace "nowt".
Undefined or Null Checker.
A collection of useful helper functions
Strip the keys from an object if the values are not defined
[docs](https://changjoo-park.github.io/nested-object-mutator/)
The package provides methods to check whether a JSON object or a JSON array is empty or not. - The package considers an **object** empty when it is `null`, `undefined` or has no keys. - The package considers an **array** empty when it is `null`, `undefine