TypeTags .Boolean
Overview
The Boolean object is an object wrapper for a boolean value.
Usage
import { TypeTags } from 'typetags'
console.log(TypeTags.Boolean)// → [object Boolean]Predicate
.isBoolean(value)
- Checks if
valueis or has a defaultBooleantype tag.
const { TypeTags } = require('typetags')
let bool = false
TypeTags.isBoolean(bool)// → true
TypeTags.isBoolean(true)// → true
TypeTags.Boolean === TypeTags.get(bool)// → trueMetadata (TType)
| Metadata | Value |
|---|---|
.type | Boolean |
.tag | [object Boolean] |
.builtin() | undefined |
.getTag() | [object Boolean] |
.hasSpecialArgs() | false |
.instance() | undefined |
.instanceTypeOf() | boolean |
.info() | see more |
.isAvailable() | true |
.isConstructor() | true |
.isFactory() | true |
.isFunction() | true |
.isGlobal() | true |
.isIterator() | false |
.isNested() | false |
.isObject() | false |
.isPrimitive() | true |
.isStringifiable() | true |
.isSyntatic() | false |
.isTypedArray() | false |
.ownKeys() | [length, name, prototype] |
.toString() | function toString() { [native code] } |
.typeOf() | function |
Signature
declare type ITypeTags = { [key in Types | NestedTypes]: Tags}
declare interface Predicate { predicate(value: any): boolean}