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const myMap = new Map();

// Ìí¼Ó¼üÖµ¶Ô
myMap.set('name', 'John Doe');
myMap.set('age', 30);

// ʹÓà delete ÒªÁìɾ³ý¼üÖµ¶Ô
myMap.delete('age');

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console.log(myMap.has('age')); // false

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