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import process from 'node:process'
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import readline from 'node:readline'
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function clearScreen() {
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  const repeatCount = process.stdout.rows - 2
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  const blank = repeatCount > 0 ? '\n'.repeat(repeatCount) : ''
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  console.log(blank)
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  readline.cursorTo(process.stdout, 0, 0)
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  readline.clearScreenDown(process.stdout)
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}

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import process from 'node:process'
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import readline from 'node:readline'
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function clearScreen() {
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  const repeatCount = process.stdout.rows - 2
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  const blank = repeatCount > 0 ? '\n'.repeat(repeatCount) : ''
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  console.log(blank)
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  readline.cursorTo(process.stdout, 0, 0)
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  readline.clearScreenDown(process.stdout)
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}
11 collapsed lines
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function print() {
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  for (let i = 0; i < 10; i++) {
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    console.log(i)
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  }
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  setTimeout(clearScreen, 1000)
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  setTimeout(print, 3000)
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}
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print()