How to Check if a Specific Element Exists in a Set in JavaScript ? Last Updated : 30 Jan, 2024 Comments Improve Suggest changes Like Article Like Report To check if a specific element exists in a Set in JavaScript, you can use the has method. The has method returns a boolean indicating whether an element with the specified value exists in the Set Syntax:myset.has(value);Parameters:value: It is the value of the element that has to be checked if it exists in the Set.Example 1: Here, we have checked whether "yellow" exists in tempset or not, as it is present we got the output as true. The has( ) method takes one value as a parameter and checks whether it is present in the set given or not. JavaScript let tempset =new Set(); tempset.add("red"); tempset.add("green"); tempset.add("blue"); tempset.add("yellow"); tempset.add("digitalvasanth"); console.log(tempset.has("yellow")); Outputtrue Example 2: Here, we have passed 99 to has( ) , which is not present in tempset, so it returned false as output. JavaScript let tempset =new Set(); tempset.add(80); tempset.add(88); tempset.add(90); tempset.add(77); console.log(tempset.has(99)); Outputfalse Comment More infoAdvertise with us Next Article How to Check if a Specific Element Exists in a Set in JavaScript ? digitalvasanth Follow Improve Article Tags : JavaScript Web Technologies Geeks Premier League Geeks Premier League 2023 Similar Reads How to Check if an Element Exists in an Array in JavaScript? Given an array, the task is to check whether an element present in an array or not in JavaScript. 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