Example 1: filter in js
const filterThisArray = ["a","b","c","d","e"]
console.log(filterThisArray) // Array(5) [ "a","b","c","d","e" ]
const filteredThatArray = filterThisArray.filter((item) => item!=="e")
console.log(filteredThatArray) // Array(4) [ "a","b","c","d" ]
Example 2: 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]
Example 3: filter
function isBigEnough(value) {
return value >= 10
}
let filtered = [12, 5, 8, 130, 44].filter(isBigEnough)
// filtered is [12, 130, 44]