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273 packages found
A window usage on gatsby app
JavaScript Isser library.
A library for optimizing error or undefined handling in JavaScript and TypeScript using Rust-like Result and Option types.
returns a copy of an array or object with null/undefined members removed
Check if a value is undefined or not.
A library to have a generic typescript definition for object presence.
Redux middleware for wrapping store in a Proxy to help with complex nested states.
Checks if the given array has the search item (Type: string | number | boolean | object | array | null | undefined) based on the given options.
Returns duplicates-removed array -- has options for case-sensitivity and strict-typing.
Checks if the given value is null.
Rustlike option- and result-types for better null- and error-handling.
Returns the datatype of the arg.
All imaginable type checking utils with their negation
Validates if a value is undefined.
Convert undefined properties of an object to null and back again.
A simple module that works exactly as Object.assign, but skips assigning undefined values.
Safe Window Getters
Validates if a value is undefined or null.