TypeScript Array some() Method

The Array.some() is an inbuilt TypeScript function which is used to check for some element in the array passes the test implemented by the provided function.
Syntax:

array.some(callback[, thisObject])

Parameter: This method accept two parameter as mentioned above and described below:

• callback : This parameter is the Function to test for each element.
• thisObject : This parameter is the Object to use as this when executing callback.

Return Value: This method returns true if some element in this array satisfies the provided testing function. 
Below example illustrate the  Array  some() method in TypeScriptJS:
Example 1:

TypeScript

// check for positive number
function ispositive(element, index, array)
{
   return element > 0;
}

// Driver code
var arr = [ 11, 89, 23, 7, 98 ];

// check for positive number
var value = arr.some(ispositive);
console.log( value );

Output:

true

Example 2:

TypeScript

// check for even number
function iseven(element, index, array)
{
   return (element % 2 == 0);
}
// Driver code
var arr = [ 11, 89, 23, 7, 91 ];

// check for positive number
var value = arr.some(iseven);
console.log( value );

Output:

false