JavaScript Array some() Method

The some() methods perform testing and checks if atleast a single array element passes the test, implemented by the provided function. If the test is passed, it returns true. Else, returns false.

Javascript array some() method tests whether some element in the array passes the test implemented by the provided function.


array.some(function(currentValue, index, arr), thisValue)

Parameters: This method accepts five parameters as mentioned above and described below:

  • callback: This parameter holds the function to be called for each element of the array.
  • element: The parameter holds the value of the elements being processed currently.
  • index: This parameter is optional, it holds the index of the currentValue element in the array starting from 0.
  • array: This parameter is optional, it holds the complete array on which Array.every is called.
  • thisArg: This parameter is optional, it holds the context to be passed as this to be used while executing the callback function. If the context is passed, it will be used like this for each invocation of the callback function, otherwise undefined is used as default.


<p>Minimum age: <input type="number" id="ageToCheck" value="18"></p>
<button onclick="myFunction()">Try it</button>

<p>Any ages above: <span id="demo"></span></p>

var ages = [4, 12, 16, 20];

function checkAdult(age) {
  return age >= document.getElementById("ageToCheck").value;

function myFunction() {
  document.getElementById("demo").innerHTML = ages.some(checkAdult);

Example -