Remove duplicate lines from text while preserving the original order.
Code
Utilitiesconst lines = text.split('\n');
const seen = new Set();
const result = [];
for (const line of lines) {
const key = caseSensitive ? line : line.toLowerCase();
if (!seen.has(key)) {
seen.add(key);
result.push(line);
}
}
return result.join('\n');Parameters
Multi-line text with potential duplicates.
Treat lines with different case as different.
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