check if set has value js
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
check if set has value js
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
javascript check if set contains
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
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