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Corrected mistake #211

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Corrected mistake #211

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2 changes: 1 addition & 1 deletion manuscript/ch4.md
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Expand Up @@ -330,7 +330,7 @@ var compose = (...fns) =>

**Note:** This implementation of `compose(..)` uses `[...fns].reverse().reduce(..)` to reduce from right-to-left. We'll [revisit `compose(..)` in Chapter 9](ch9.md/#user-content-composereduceright), instead using `reduceRight(..)` for that purpose.

Notice that the `reduce(..)` looping happens each time the final `composed(..)` function is run, and that each intermediate `result(..)` is passed along to the next iteration as the input to the next call.
Notice that the `reduce(..)` looping happens each time the final `composed(..)` function is run, and that each intermediate `result` is passed along to the next iteration as the input to the next call.

The advantage of this implementation is that the code is more concise and also that it uses a well-known FP construct: `reduce(..)`. And the performance of this implementation is also similar to the original `for`-loop version.

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