File size: 764 Bytes
076ace8 |
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 |
export function isNumber<T extends number>(value: T | unknown): value is number {
return Object.prototype.toString.call(value) === '[object Number]'
}
export function isString<T extends string>(value: T | unknown): value is string {
return Object.prototype.toString.call(value) === '[object String]'
}
export function isNotEmptyString(value: any): boolean {
return typeof value === 'string' && value.length > 0
}
export function isBoolean<T extends boolean>(value: T | unknown): value is boolean {
return Object.prototype.toString.call(value) === '[object Boolean]'
}
export function isFunction<T extends (...args: any[]) => any | void | never>(value: T | unknown): value is T {
return Object.prototype.toString.call(value) === '[object Function]'
}
|