Sometimes, we want to use the array reduce function with TypeScript.

In this article, we’ll look at how to use the array reduce function with TypeScript.

How to use the array reduce function with TypeScript?

To use the array reduce function with TypeScript, we can use it like we do with JavaScript.

For instance, we write

const x = a.reduce(fn, <string[]>[]);

to call reduce with the fn callback and an empty array as the initializer.

We set the initializer array to a string array with <string[]>.

Conclusion

To use the array reduce function with TypeScript, we can use it like we do with JavaScript.