Map.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 July 2015.
O método clear()
remove todos os elementos de um objeto Map
.
Experimente
const map1 = new Map();
map1.set("bar", "baz");
map1.set(1, "foo");
console.log(map1.size);
// Expected output: 2
map1.clear();
console.log(map1.size);
// Expected output: 0
Sintaxe
js
clear();
Valor retornado
Exemplos
Usando o clear()
js
var myMap = new Map();
myMap.set("bar", "baz");
myMap.set(1, "foo");
myMap.size; // 2
myMap.has("bar"); // true
myMap.clear();
myMap.size; // 0
myMap.has("bar"); // false
Especificações
Specification |
---|
ECMAScript® 2025 Language Specification # sec-map.prototype.clear |
Compatibilidade com navegadores
Report problems with this compatibility data on GitHubdesktop | mobile | server | ||||||||||||
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clear |
Legend
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- Full support
- Full support
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