function that duplicates data in array js
var array = [1, 2, 2, 3, 3, 4, 5, 6, 2, 3, 7, 8, 5, 22, 1, 2, 511, 12, 50, 22];
console.log([...new Set(
array.filter((value, index, self) => self.indexOf(value) !== index))]
);
3.86
7
const findDuplicates = (arr) => {
let sorted_arr = arr.slice().sort(); // You can define the comparing function here.
// JS by default uses a crappy string compare.
// (we use slice to clone the array so the
// original array won't be modified)
let results = [];
for (let i = 0; i < sorted_arr.length - 1; i++) {
if (sorted_arr[i + 1] == sorted_arr[i]) {
results.push(sorted_arr[i]);
}
}
return results;
}
let duplicatedArray = [9, 4, 111, 2, 3, 9, 4, 5, 7];
console.log(`The duplicates in ${duplicatedArray} are ${findDuplicates(duplicatedArray)}`);
Thank you!
7
3.86
(7 Votes)
0
3
1
function doubleValues(array) {
var newArray = [];
array.forEach(function (el) { newArray.push(el, el); });
return newArray;
}
console.log(doubleValues([1,2,3]));
Thank you!
1
3
(1 Votes)
0
Are there any code examples left?
New code examples in category Javascript
Relative searches
How do you find the duplicate number on a given integer array? javascript
js duplicate an element
count duplicate values in array javascript
create duplicate element of an array in js
duplicate method in javascript
js check for duplicates in array
duplicate array function
duplicate items in array ja
javascript filter duplicates in array
how to find duplicates in array javascript
duplicate data javascript
js count duplicates in array
js filter duplicates from array
duplicates count in array jhs
how to duplicate a number in js
how to duplicate array
method to check for duplicates java script
duplicate item js
duplicate javascript
filter duplicates in array javascript
check array for duplicates js
how to duplicate each elements of array in javascript
how to filter duplicate valus from a array in javascript
duplicate array javascript
array have duplicate items?
duplicate free array in js
how to filter duplicates in an array javascript
find and print duplicates in javascript array
use array with duplicates
array duplicate javascript
check for if a value is duplicate in an array javascript
extract array duplicates js
array duplicates in javascript
javascript array duplicate
duplicate element in array
duplicate elements in array contains
duplicate an array js [...]
duplicate an array js
count duplicate elements in array javascript
how to find repeated element in array js
how to check data in same array in javascript which is repeated
how to find dupllicated in an array javascript
find duplicate values in array javascript
duplicate values in foreach javascript
duplicate values in javascript foreach
for loop array duplicated elements javascript
how to compare two elements of array in javascript searchin duplicates
how to duplicate in javascript
how to duplicate elements in js
how to duplicate array in javascript
best way to duplicate array js
js duplicate array
duplicate an array
JS check for duplications in array
duplicate elements in array
how to check if there are duplicates in an array javascript
make duplicate array in javascript
duplicates js
duplicate list elements javascript
duplicate values in array
finding duplicates in array javascript
duplicate array js
in array to find duplicate vlalue and print in javascript
duplicate value check in list js
duplicates elements in that array
how to count duplicates in an array javascript
javascript for loop array duplicate elements
duplicate elements array
how to store duplicates in js
javascript count duplicate numbers in array
js find duplicates in array
