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A simple package which returns true when object is type of some specific interface or type.
The instanceof mechanism cross package/module versions.
Validates if a value is a Date object.
前端工具库集合, 工作业务制作, 提高编码能力, 业务开发效率
Additional ESLint rules.
Additional ESLint rules.
Validates if a value is a regular expression.
- validate.io
- validate
- validation
- validator
- valid
- regular expression
- regexp
- regex
- is
- type
- check
- instanceof
- isregexp
- isregex
Additional ESLint rules.
SlimIO is (JavaScript Primitives & Objects type checker)
Simple Object type/name checks
- is*
- type
- typeof
- instanceof
- type name
- object name
- function name
- isString
- isNumber
- isArray
- isObject
- isPromise
- isWeakMap
- isMap
Variable type comparison
Type utilities
is-any-type simple functionality alternative to check data type references such as typeof and instanceof
Determine if a value is an instance of a type
Check if the given value is of the particular type or types.
Check if a value is an error constructor
Pattern matcher for matching the types and structure of variables
See what type or instance something is
Safely and simply extend native Error with prototype chaining support