check if all elements in array match a condition javascript
const isBelowThreshold = (currentValue) => currentValue < 40;
const array1 = [1, 30, 39, 29, 10, 13];
console.log(array1.every(isBelowThreshold));
// expected output: truecheck if all elements in array match a condition javascript
const isBelowThreshold = (currentValue) => currentValue < 40;
const array1 = [1, 30, 39, 29, 10, 13];
console.log(array1.every(isBelowThreshold));
// expected output: truecheck if array contain the all element javascript
const myArray: number[] = [2, 4, 6, 8, 10, 12, 14, 16];
const elements: number[] = [4, 8, 12, 16];
function containsAll(arr: number[]) {
return (
arr.includes(elements[0]) &&
arr.includes(elements[1]) &&
arr.includes(elements[2]) &&
arr.includes(elements[3])
);
}
console.log(containsAll(myArray));
or you could use the following line:
function c2(arr: number[]) {
return elements.every((val: number) => arr.includes(val));
}Copyright © 2021 Codeinu
Forgot your account's password or having trouble logging into your Account? Don't worry, we'll help you to get back your account. Enter your email address and we'll send you a recovery link to reset your password. If you are experiencing problems resetting your password contact us
