JavaScript has()
Posté 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.
Rechercher
Catégories
- Arts
- Business
- Computers
- Jeux
- Health
- Domicile
- Kids and Teens
- Argent
- News
- Personal Development
- Recreation
- Regional
- Reference
- Science
- Shopping
- Society
- Sports
- Бизнес
- Деньги
- Дом
- Досуг
- Здоровье
- Игры
- Искусство
- Источники информации
- Компьютеры
- Личное развитие
- Наука
- Новости и СМИ
- Общество
- Покупки
- Спорт
- Страны и регионы
- World
Lire la suite
What Are the Advantages of Bootstrapping?
Bootstrapping refers to the process of starting and growing a business using only personal...
Heat. (1995)
A group of high-end professional thieves start to feel the heat from the LAPD when they...
What is an MSc or PhD in Management Science?
Understanding the Differences Between Professional and Research-Focused Degrees
Management...
Countries That Pay to Relocate in 2024
Countries That Pay to Relocate in 2024
Which countries pay money for moving? For a long time, I...
How Do I Get Approved for Google AdSense?
Getting approved for Google AdSense is one of the most important milestones for website owners,...