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TypeScript - sum / subtract numbers in array with reduce()

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Created by:
Paluskitten
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In this article, we would like to show you how to sum and subtract numbers with reduce() method in TypeScript.

1. Sum example

Edit

In the below example, we execute sum function provided to the reduce() method that sums all the numbers in the array.

Output:

2. Subtract example

Edit

In the below example, we execute subtract function provided to the reduce() method that subtracts all the numbers in the array from the accumulator (first item in the array).

Output:

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