JavaScript has()
Postado 2023-05-16 11:21:29
0
11KB
The has() function of the map object accepts a key in string format and returns a boolean value of true if the specified key exists. Otherwise, the function returns false.
Map is a data structure in JavaScript that allows the storage of [key, value] pairs where any value can be used as either a key or value.
Syntax
mapObject.has(key)
The has() function takes a key in the string format. It returns a boolean value that indicates the presence of that key in the Map object.
Pesquisar
Categorias
- Arts
- Business
- Computers
- Jogos
- Health
- Início
- Kids and Teens
- Money
- News
- Recreation
- Reference
- Regional
- Science
- Shopping
- Society
- Sports
- Бизнес
- Деньги
- Дом
- Досуг
- Здоровье
- Игры
- Искусство
- Источники информации
- Компьютеры
- Наука
- Новости и СМИ
- Общество
- Покупки
- Спорт
- Страны и регионы
- World
Leia mais
TheDove TV Stream. United States.
theDove Mission StatementOur Mission is simple; theDove exists to proclaim the Good News of Jesus...
The Essence of News: Navigating the Currents of Information
The Essence of News: Navigating the Currents of Information
In a world inundated with a...
How Often Should I Post Vlogs, and How Long Should They Be?
Introduction
Once you’ve found your niche and started creating content, the next big...
Prepare Thoughtful Questions: Show Interest and Initiative in Interviews
One of the most overlooked opportunities in a job interview comes at the end when the interviewer...
Body Art
Body art is a form of avant-garde art that developed in the 1960s. The main object of body art is...