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Returns true if a value has the characteristics of a valid JavaScript accessor descriptor.
Returns true if a value has the characteristics of a valid JavaScript data descriptor.
Returns true if a value has the characteristics of a valid JavaScript descriptor. Works for data descriptors and accessor descriptors.
What is the type of this builtin JS value?
Get the native type of a value.
Detect the file type of a Buffer/Uint8Array/ArrayBuffer
Returns true if an object was created by the `Object` constructor, or Object.create(null).
Infer the content-type of a request.
Returns true if the value is an object and not an array or null.
Fork of Zod by Colin McDonnell <colin@colinhacks.com> to add support for warn & assert validation
Determine and test types using constructor or {}.toString
A set of types, type checks, and type guards for simpler, safer, and easier to read code.
Change the skin tone of an emoji 👌👌🏻👌🏼👌🏽👌🏾👌🏿
Library of simple and common data tranformers
Small lib of template tags, classes, and escaping functions for working with sync or async html.
type-check allows you to check the types of JavaScript values at runtime with a Haskell like type syntax.
A vanilla JavaScript library for checking the type of variables in a more robust and accurate way than the typeof operator
- vanilla javascript
- types
- type
- type checking
- type checking library
- type checking module
- true type checking
- typeof
- typeof library
- typeof module
- typeof checking
- typeOf
- isString
- isNumber
- View more
Collection of useful helper functions when trying to determine module type (CommonJS or AMD) properties of an AST node.
Runtime validation and processing of JavaScript types