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Filtering out primes from an array - JavaScript
We are required to write a JavaScript function that takes in the following array of numbers,
const arr = [34, 56, 3, 56, 4, 343, 68, 56, 34, 87, 8, 45, 34];
and returns a new filtered array that does not contain any prime number.
Example
Following is the code −
const arr = [34, 56, 3, 56, 4, 343, 68, 56, 34, 87, 8, 45, 34];
const isPrime = n => {
if (n===1){
return false;
}else if(n === 2){
return true;
}else{
for(let x = 2; x < n; x++){
if(n % x === 0){
return false;
}
}
return true;
};
};
const filterPrime = arr => {
const filtered = arr.filter(el => !isPrime(el));
return filtered;
};
console.log(filterPrime(arr));Output
Following is the output in the console −
[ 34, 56, 56, 4, 343, 68, 56, 34, 87, 8, 45, 34 ]
Updated on: 18-Sep-2020
1K+ Views
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