freeCodeCamp/curriculum/challenges/chinese/02-javascript-algorithms-and-data-structures/functional-programming/use-the-some-method-to-check-that-any-elements-in-an-array-meet-a-criteria.md

---
id: 587d7dab367417b2b2512b6f
title: Use the some Method to Check that Any Elements in an Array Meet a Criteria
challengeType: 1
forumTopicId: 301314
dashedName: use-the-some-method-to-check-that-any-elements-in-an-array-meet-a-criteria
---

# --description--

The `some` method works with arrays to check if *any* element passes a particular test. It returns a Boolean value - `true` if any of the values meet the criteria, `false` if not.

For example, the following code would check if any element in the `numbers` array is less than 10:

```js
var numbers = [10, 50, 8, 220, 110, 11];
numbers.some(function(currentValue) {
  return currentValue < 10;
});
// Returns true
```

# --instructions--

Use the `some` method inside the `checkPositive` function to check if any element in `arr` is positive. The function should return a Boolean value.

# --hints--

Your code should use the `some` method.

```js
assert(code.match(/\.some/g));
```

`checkPositive([1, 2, 3, -4, 5])` should return `true`.

```js
assert(checkPositive([1, 2, 3, -4, 5]));
```

`checkPositive([1, 2, 3, 4, 5])` should return `true`.

```js
assert(checkPositive([1, 2, 3, 4, 5]));
```

`checkPositive([-1, -2, -3, -4, -5])` should return `false`.

```js
assert(!checkPositive([-1, -2, -3, -4, -5]));
```

# --seed--

## --seed-contents--

```js
function checkPositive(arr) {
  // Only change code below this line


  // Only change code above this line
}
checkPositive([1, 2, 3, -4, 5]);
```

# --solutions--

```js
function checkPositive(arr) {
  // Only change code below this line
  return arr.some(elem => elem > 0);
  // Only change code above this line
}
checkPositive([1, 2, 3, -4, 5]);
```