Array.prototype.reduce() - JavaScript | MDN

This feature is well established and works across many devices and browser versions. It’s been available across browsers since ⁨July 2015⁩. Learn more See full compatibility Report feedback The reduce() method of Array instances executes a user-supplied "reducer" callback function on each element of the array, in order, passing in the return value from the calculation on the preceding element. The

[okumuraa1]

ありがとうございますm(_ _)m