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Copy file name to clipboardExpand all lines: 1-js/05-data-types/07-map-set/article.md
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-[`map.set(key, value)`](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Map/set) -- записывает по ключу `key` значение `value`.
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-[`map.get(key)`](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Map/get) -- возвращает значение по ключу или `undefined`, если ключ `key` отсутствует.
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-[`map.has(key)`](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Map/has) -- возвращает `true`, если ключ `key` присутствует в коллекции, иначе `false`.
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-[`map.delete(key)`](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Map/delete) -- удаляет элемент по ключу `key`.
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-[`map.delete(key)`](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Map/delete) -- удаляет элемент (пару "ключ/значение") по ключу `key`.
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-[`map.clear()`](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Map/clear) -- очищает коллекцию от всех элементов.
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-[`map.size`](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Map/size) -- возвращает текущее количество элементов.
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