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Harlow
Write a debounce function in TypeScript with generics

Harlow

Here's a type-safe debounce with full generic support:

function debounce<T extends (...args: any[]) => any>(fn: T, delay: number) {
  let timer: ReturnType<typeof setTimeout>
  return (...args: Parameters<T>) => {
    clearTimeout(timer)
    timer = setTimeout(() => fn(...args), delay)
  }
}

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Harlow doesn't just autocomplete. It understands context, intent, and best practices. Ask anything, get direct answers.

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Write Tests

Auto-generate unit tests for any function

Explain Code

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Harlow
Why is my useEffect running twice?
In React 18 Strict Mode, effects run twice in development to detect side effects. This won't happen in production.
How do I add cleanup?
Return a function: useEffect(() => { const s = subscribe() return () => s.unsubscribe() }, [])

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JSON Formatter

Format, validate & explain

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Regex Generator

Describe it, AI writes the regex

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SQL Query Builder

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Code to Docs

AI generates documentation

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Unit Test Generator

AI writes tests for your code

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Code Refactor

AI refactors for clarity

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  • –20 messages / day
  • –JSON Formatter
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  • –All 11 Lab tools
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