# Introduction In this challenge, we will implement the `reduce` method for arrays in JavaScript. The `reduce` method is used to iterate over an array and accumulate a single result value. We will create a function called `myReduce` that accepts an array, a callback function, and an optional initial value. The callback function will be executed on each element of the array and will take the previous and current values as arguments. The `myReduce` function will return the final result of the calculation.
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