JavaScript: Set.prototype.delete(value): Remove element from set

Set.prototype.delete(value)

‘delete’ method removes the element from set. This method return true, if the element is removed, else false.

HelloWorld.js

function printSetInfo(set){
  console.log("***********************************");
  console.log("Number Of Elements : " + set.size);
  
  for(var key of countries){
    console.log(key);
  }
  console.log("***********************************");
}

var countries =  new Set();

countries.add("India");
countries.add("Australia");
countries.add("Canada");
countries.add("Germany");

printSetInfo(countries);

var removed = countries.delete("Australia");
console.log("Is Australia removed ? " + removed);

removed = countries.delete("France");
console.log("Is France removed ? " + removed);

printSetInfo(countries);

Output

***********************************

Number Of Elements : 4

India

Australia

Canada

Germany

***********************************

Is Australia removed ? true

Is France removed ? false

***********************************

Number Of Elements : 3

India

Canada

Germany

***********************************

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