How to create the Set of JavaScript

This article mainly introduces "how to create JavaScript Set". In daily operation, I believe many people have doubts about how to create JavaScript Set. Xiaobian consulted all kinds of information and sorted out simple and easy operation methods. I hope to help you answer the doubts about "how to create JavaScript Set"! Next, please follow the small series to learn together!

JavaScript Set is a collection of unique values

Each value can appear only once in a Set.

A Set can hold any value of any data type.

Set object methods and properties

new Set () creates a new Set object.

add () adds a new element to the Set.

clear () removes all elements from the Set.

delete () deletes the element specified by its value.

entries () Returns an array of values in a Set object.

has () Returns true if the value exists.

forEach () calls a callback for each element.

keys () Returns an array of values in a Set object.

values () are the same as keys ().

size Returns the element count.

How to Create a Set

//Create Set

const letters = new Set（）;

// Add the values to the Set

letters.add（a）;

At this point, the study of "how to create JavaScript Set" is over, hoping to solve everyone's doubts. Theory and practice can better match to help everyone learn, go and try it! If you want to continue learning more relevant knowledge, please continue to pay attention to the website, Xiaobian will continue to strive to bring more practical articles for everyone!