JS: Set.prototype.delete

(new in JS: ECMAScript 2015)

mySet.delete(value)

• Delete value in the set mySet.
• Return true if found, else false.

const xx = new Set([4, 5, 6]);

// delete a value. return true if found
console.log(xx.delete(5) === true);

console.log(xx.delete(99) === false);