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Set.prototype.clear()

Baseline Widely available

This feature is well established and works across many devices and browser versions. It’s been available across browsers since июль 2015 г..

Метод clear() удаляет все элементы из объекта Set.

In this article

Синтаксис

mySet.clear();

Возвращаемое значение

undefined.

Примеры

Использование метода clear

js
var mySet = new Set(); mySet.add(1); mySet.add("foo"); mySet.size; // 2 mySet.has("foo"); // true mySet.clear(); mySet.size; // 0 mySet.has("bar"); // false

Спецификации

Specification
ECMAScript® 2027 Language Specification
# sec-set.prototype.clear

Совместимость с браузерами

Enable JavaScript to view this browser compatibility table.

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This page was last modified on 7 авг. 2023 г. by MDN contributors.

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  1. Стандартные встроенные объекты
  2. Set
  3. Конструктор
    1. Set() конструктор
  4. Статические свойства
    1. [Symbol.species]
  5. Методы экземпляра
    1. Set.prototype.add()
    2. Set.prototype.clear()
    3. Set.prototype.delete()
    4. difference()
    5. Set.prototype.entries()
    6. Set.prototype.forEach()
    7. Set.prototype.has()
    8. intersection()
    9. isDisjointFrom()
    10. isSubsetOf()
    11. isSupersetOf()
    12. keys()
    13. symmetricDifference()
    14. union()
    15. Set.prototype.values()
    16. [Symbol.iterator]()
  6. Свойства экземпляра
    1. Set.prototype.size
  7. Наследование
  8. Object/Function
  9. Статические методы
    1. Function.prototype.apply()
    2. Function.prototype.bind()
    3. Function.prototype.call()
    4. Function.prototype.toString()
    5. [Symbol.hasInstance]()
  10. Статические свойства
    1. Function.displayName
    2. Function.length
    3. Function.name
    4. prototype
    5. Function.arguments
    6. Function.caller
  11. Методы экземпляра
    1. Object.prototype.__defineGetter__()
    2. Object.prototype.__defineSetter__()
    3. Object.prototype.__lookupGetter__()
    4. Object.prototype.__lookupSetter__()
    5. Object.prototype.hasOwnProperty()
    6. Object.prototype.isPrototypeOf()
    7. Object.prototype.propertyIsEnumerable()
    8. Object.prototype.toLocaleString()
    9. Object.prototype.toString()
    10. Object.prototype.valueOf()
  12. Свойства экземпляра
    1. Object.prototype.__proto__
    2. Object.prototype.constructor

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