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check if set has value js

Enthusiastic Eel answered on October 10, 2020 Popularity 9/10 Helpfulness 2/10

answer check if set has value js

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check if set has value js

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const mySet = new Set();

// Add value to set
mySet.add(15);

console.log(mySet.has(33)) // expected output: false
cosole.log(mySet.has(15)) // expected output: true

Popularity 9/10 Helpfulness 2/10 Language javascript

Source: Grepper

Tags: javascript set

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Contributed on Oct 10 2020

Enthusiastic Eel

0 Answers Avg Quality 2/10

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javascript check if set contains

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var mySet = new Set();
mySet.add('foo');

mySet.has('foo');  // returns true
mySet.has('bar');  // returns false

var set1 = new Set();
var obj1 = {'key1': 1};
set1.add(obj1);

set1.has(obj1);        // returns true
set1.has({'key1': 1}); // returns false because they are different object references
set1.add({'key1': 1}); // now set1 contains 2 entries

Popularity 9/10 Helpfulness 3/10 Language javascript

Source: developer.mozilla.org

Tags: contains contain

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Contributed on Dec 31 2020

Xanthous Xenomorph

0 Answers Avg Quality 2/10

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check if set has value js

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