Answers for "how to use filter()"

SQL
15

how the filter() function works javascript

const arr = [1, 2, 3, 4, 5, 6, 7, 8, 9];

const filter = arr.filter((number) => number > 5);
console.log(filter); // [6, 7, 8, 9]
Posted by: Guest on April-07-2020
2

filter in javascript

const arr = [1, 2, 3, 4, 5, 6];
const filtered = arr.filter(el => el === 2 || el === 4);	//[2, 4]
Posted by: Guest on November-17-2021
0

filter

const array = [-3, -2, -1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13]; 

function isPrime(num) {
  for (let i = 2; num > i; i++) {
    if (num % i == 0) {
      return false;
    }
  }
  return num > 1;
}

console.log(array.filter(isPrime)); // [2, 3, 5, 7, 11, 13]
Posted by: Guest on November-09-2020
-1

filter

select *
from   toys
where  colour in ('red','blue')
	   AND price >= 6 AND price < 14.22;
Posted by: Guest on June-26-2021

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