How to some() function to check each value in a Javascript array

Description

some() accepts two arguments:

• a function to run on each item
• an optional scope object.

some() runs the given function on every item and returns true if the function returns true for any one item.

The function passed in receives three arguments:

• the array item value,
• the position of the item in the array
• the array object itself.

Example

var numbers = [1,2,3,4,5,4,3,2,1]; 
var someResult = numbers.some(function(item, index, array){ 
   return (item > 2); /* w ww.  j  av  a 2 s .c  om*/
}); 
        
console.log(someResult); //true 

some() does not change the values contained in the array.

The code above generates the following result.