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javascript WeakSet Methods

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SAMER SAEID answered on May 21, 2022 Popularity 8/10 Helpfulness 4/10

answer javascript WeakSet Methods

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javascript WeakSet Methods

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const weakSet = new WeakSet();
console.log(weakSet); // WeakSet {}

const obj = {a:1};

// add to a weakSet
weakSet.add(obj);
console.log(weakSet); // WeakSet {{a: 1}}

// check if an element is in Set
console.log(weakSet.has(obj)); // true

// delete elements
weakSet.delete(obj);
console.log(weakSet); // WeakSet {}

Popularity 8/10 Helpfulness 4/10 Language javascript

Source: Grepper

Tags: javascript methods

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Contributed on May 21 2022

SAMER SAEID

0 Answers Avg Quality 2/10

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js weakset

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const ws = new WeakSet();
const foo = {};
const bar = {};

ws.add(foo);
ws.add(bar);

ws.has(foo);    // true
ws.has(bar);    // true

ws.delete(foo); // removes foo from the set
ws.has(foo);    // false, foo has been removed
ws.has(bar);    // true, bar is retained

Popularity 9/10 Helpfulness 4/10 Language javascript

Source: developer.mozilla.org

Tags: javascript j

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Contributed on May 30 2022

barisx

0 Answers Avg Quality 2/10

JavaScript WeakSet

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const weakSet = new WeakSet();
console.log(weakSet); // WeakSet {}

let obj = {
    message: 'Hi',
    sendMessage: true
}

// adding object (element) to WeakSet
weakSet.add(obj);

console.log(weakSet); // WeakSet {{message: "Hi", sendMessage: true}}

Popularity 9/10 Helpfulness 2/10 Language javascript

Source: Grepper

Tags: javascript j

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Contributed on May 21 2022

SAMER SAEID

0 Answers Avg Quality 2/10

javascript WeakSet Methods

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