Breaking News: Grepper is joining You.com. Read the official announcement!

js Set

Add Answer

The O Programing Language answered on January 22, 2020 Popularity 10/10 Helpfulness 2/10

answer js Set

related set js

related set in javascript

related JavaScript Sets

related javaScript new Set() Method

related set javascript

related js set

related set js

related set in javascript

js Set

Comment

const id = new Set();

id.add(1);
id.add(2);
id.add(3);
id.add(3);// duplicate value will not be added
console.log(id);// output: Set {1, 2, 3}
id.delete(2);// delete the value 2 from the set
console.log(id);// output: Set {1, 3}
id.has(2);// check if the set has the value 2 // output: true
console.log(id);


//order is not guaranteed

Popularity 10/10 Helpfulness 2/10 Language javascript

Source: Grepper

Tags: javascript set

Link to this answer
Share Copy Link

Contributed on Aug 16 2022

The O Programing Language

0 Answers Avg Quality 2/10

Closely Related Answers

set js

Comment

// Use to remove duplicate elements from the array 

const numbers = [2,3,4,4,2,3,3,4,4,5,5,6,6,7,5,32,3,4,5]

//spreading numbers of the object into an array using the new operator
console.log([...new Set(numbers)]) 

// [2, 3, 4, 5, 6, 7, 32]

Popularity 10/10 Helpfulness 5/10 Language javascript

Source: developer.mozilla.org

Tags: javascript j

Link to this answer
Share Copy Link

Contributed on Jan 22 2020

Happy Hyena

0 Answers Avg Quality 2/10

set in javascript

Comment

let mySet = new Set()

mySet.add(1)           // Set [ 1 ]
mySet.add(5)           // Set [ 1, 5 ]
mySet.add(5)           // Set [ 1, 5 ]
mySet.add('some text') // Set [ 1, 5, 'some text' ]
let o = {a: 1, b: 2}
mySet.add(o)

mySet.add({a: 1, b: 2})   // o is referencing a different object, so this is okay

mySet.has(1)              // true
mySet.has(3)              // false, since 3 has not been added to the set
mySet.has(5)              // true
mySet.has(Math.sqrt(25))  // true
mySet.has('Some Text'.toLowerCase()) // true
mySet.has(o)       // true

mySet.size         // 5

mySet.delete(5)    // removes 5 from the set
mySet.has(5)       // false, 5 has been removed

mySet.size         // 4, since we just removed one value

console.log(mySet)
// logs Set(4) [ 1, "some text", {…}, {…} ] in Firefox
// logs Set(4) { 1, "some text", {…}, {…} } in Chrome

Popularity 10/10 Helpfulness 4/10 Language javascript

Source: developer.mozilla.org

Tags: javascript j

Link to this answer
Share Copy Link

Contributed on Mar 19 2020

Yellowed Yak

0 Answers Avg Quality 2/10

JavaScript Sets

Comment

// Create a Set
const letters = new Set();

// Add Values to the Set
letters.add("a");
letters.add("b");
letters.add("c");

Popularity 10/10 Helpfulness 3/10 Language javascript

Source: Grepper

Tags: javascript j

Link to this answer
Share Copy Link

Contributed on May 23 2022

naly moslih

0 Answers Avg Quality 2/10

javaScript new Set() Method

Comment

// Create a Set
const letters = new Set(["a","b","c"]);

Popularity 10/10 Helpfulness 3/10 Language javascript

Source: Grepper

Tags: javascript j

Link to this answer
Share Copy Link

Contributed on May 22 2022

naly moslih

0 Answers Avg Quality 2/10

set javascript

Comment

// Use to remove duplicate elements from the array 

const numbers = [2,3,4,4,2,3,3,4,4,5,5,6,6,7,5,32,3,4,5]

//spreading numbers of the object into an array using the new operator
console.log([...new Set(numbers)]) 

// [2, 3, 4, 5, 6, 7, 32]

Popularity 10/10 Helpfulness 3/10 Language javascript

Source: Grepper

Tags: javascript j

Link to this answer
Share Copy Link

Contributed on Sep 13 2022

Umar code solver

0 Answers Avg Quality 2/10

js set

Comment

// Use to remove duplicate elements from the array 

const array = [2,3,4,4,2,3,3,4,4,5,5,6,6,7,5,32,3,4,5]

//spreading numbers of the object into an array using the new operator
console.log([...new Set(array)]) 

// [2, 3, 4, 5, 6, 7, 32]

Popularity 10/10 Helpfulness 3/10 Language javascript

Source: Grepper

Tags: javascript j

Link to this answer
Share Copy Link

Contributed on Jun 17 2021

Light Lobster

0 Answers Avg Quality 2/10

set js

Comment

let text = 'India'

let mySet = new Set(text)  // Set ['I', 'n', 'd', 'i', 'a']
mySet.size  // 5

//case sensitive & duplicate ommision
new Set("Firefox")  // Set(7) [ "F", "i", "r", "e", "f", "o", "x" ]
new Set("firefox")  // Set(6) [ "f", "i", "r", "e", "o", "x" ]

Popularity 10/10 Helpfulness 3/10 Language javascript

Source: developer.mozilla.org

Tags: javascript j

Link to this answer
Share Copy Link

Contributed on Jan 19 2021

Graceful Gibbon

0 Answers Avg Quality 2/10

set js

Comment

const myArray = ['value1', 'value2', 'value3'];

// Use the regular Set constructor to transform an Array into a Set
const mySet = new Set(myArray);

mySet.has('value1')     // returns true

// Use the spread syntax to transform a set into an Array.
console.log([...mySet]); // Will show you exactly the same Array as myArray

Popularity 10/10 Helpfulness 3/10 Language javascript

Source: developer.mozilla.org

Tags: javascript j

Link to this answer
Share Copy Link

Contributed on Sep 30 2022

kuldip ramdham

0 Answers Avg Quality 2/10

set in javascript

Comment

const mySet1 = new Set()

mySet1.add(1)           // Set [ 1 ]
mySet1.add(5)           // Set [ 1, 5 ]
mySet1.add(5)           // Set [ 1, 5 ]
mySet1.add('some text') // Set [ 1, 5, 'some text' ]
const o = {a: 1, b: 2}
mySet1.add(o)

mySet1.add({a: 1, b: 2})   // o is referencing a different object, so this is okay

mySet1.has(1)              // true
mySet1.has(3)              // false, since 3 has not been added to the set
mySet1.has(5)              // true
mySet1.has(Math.sqrt(25))  // true
mySet1.has('Some Text'.toLowerCase()) // true
mySet1.has(o)       // true

mySet1.size         // 5

mySet1.delete(5)    // removes 5 from the set
mySet1.has(5)       // false, 5 has been removed

mySet1.size         // 4, since we just removed one value

mySet1.add(5)       // Set [1, 'some text', {...}, {...}, 5] - a previously deleted item will be added as a new item, it will not retain its original position before deletion

console.log(mySet1)
// logs Set(5) [ 1, "some text", {…}, {…}, 5 ] in Firefox
// logs Set(5) { 1, "some text", {…}, {…}, 5 } in Chrome

Popularity 10/10 Helpfulness 3/10 Language javascript

Source: developer.mozilla.org

Tags: javascript j

Link to this answer
Share Copy Link

Contributed on Aug 02 2022

Better Badger

0 Answers Avg Quality 2/10

js Set

Contents

More Related Answers

js Set

Closely Related Answers

set js

set in javascript

JavaScript Sets

javaScript new Set() Method

set javascript

js set

set js

set js

set in javascript

Grepper

Documentation

Social

Legal

Contact

Oops, You will need to install Grepper and log-in to perform this action.