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Practice Paths Tracks Cheatsheets Playground Glossary AI era

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Name the error class thrown when `[].reduce(callback)` has no initial value

from JavaScript

intermediate 1 min

Name the error class thrown when `[].reduce(callback)` has no initial value.

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previous kata Which exact value triggers a destructuring default initializer? Fill in next kata What is the value of `[1, 2, 3].map(n => n * 2)`? Quiz

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