The Array.reduceRight() is an inbuilt TypeScript function which is used to apply a function against two values of the array as to reduce it to a single value in a right to left manner.
Syntax:
array.reduceRight(callback[, initialValue])
Parameter: This method accept two parameter as mentioned above and described below:
- callback : This parameter is the Function to execute on each value in the array.
- initialValue : This parameter is the Object to use as the first argument to the first call of the callback.
Return Value: This method returns the reduced right single value of the array.
Below examples illustrate the Array reduceRight() method in TypeScript
Example 1:
JavaScript
<script> // Driver code var arr = [ 11, 89, 23, 7, 98 ]; // use of reduceRight() method var val = arr.reduceRight(function(a, b) { return a - b; }); // printing element console.log( val ); </script> |
Output:
-32
Example 2:
JavaScript
<script> // Driver code var arr = [2, 5, 6, 3, 8, 9]; var val; // use of reduceRight() method val = arr.reduceRight(function(a, b) { return a/b; }); // printing element console.log( val ); </script> |
Output:
0.00625
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