_tools/utils/is library

Functions

isArray(dynamic value) bool
Checks if the value is an array
isBoolean(dynamic value) bool
Checks if the value is a boolean
isCallback(dynamic obj) bool
Checks if the value is a callback
isErrorLike(dynamic value) bool
Checks if the value is an error-like object
isFunction(dynamic value) bool
Checks if the value is a function
isInstance(dynamic value) bool
Checks if the value is an instance
isInstanceArg(dynamic value) bool
Checks if the value is an instance argument
isNullOrUndefined(dynamic value) bool
Checks if the value is null or undefined
isNumber(dynamic value) bool
Checks if the value is a number
isObject(dynamic value) bool
Checks if the value is an object
isPlainObject(dynamic obj) bool
Checks if the value is a plain object
isPromise(dynamic obj) bool
Checks if the value is a Promise
isString(dynamic value) bool
Checks if the value is a string