JavaScript Array some() Method
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JavaScript Array some() Method
The some() method returns a Boolean value by testing whether at least one element in the array passes the test implemented by the provided function.
Note: This method does not alter the original array.
Example
HTML Online Editor
<!DOCTYPE html>
<html>
<body>
<p>Check atleast one number is less than 2<p>
<script>
var myNumber = [30, 35, 40, 1, 45, 50, 55];
function checkValue(num) {
return num < 2;
}
document.write(myNumber.some(checkValue));
</script>
</body>
</html>
Syntax
Array.some(function(value, index, arr), thisArg);
//or
Array.some(functionName);
Parameter Values
| Value | Type | Explanation |
|---|---|---|
| function(value, index, arr) | Required | Function to test for each element in an array. Value - Specifies a value or element in an array. index - Specifies the index of a value or element in an array. arr - Specifies the whole array. |
| thisArg | Optional | Specifies a value against which each element in an array is tested. |
Return Values
| Value | Explanation |
|---|---|
| true | If at least one element in the array passes the test implemented by the provided function. |
| false | If no elements in the array pass the test implemented by the provided function. |
Example
HTML Online Editor
<!DOCTYPE html>
<html>
<body>
<p>Check atleast one number is less than 2<p>
<script>
var myNumber = [30, 35, 40, 1, 45, 50, 55];
function checkValue(num, index, arr) {
return num < this;
}
document.write(myNumber.some(checkValue, 2));
</script>
</body>
</html>
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