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24 lines
459 B
TypeScript
24 lines
459 B
TypeScript
/**
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* 创建个大的csv文件
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*/
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import process from 'node:process';
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const columns = 10;
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const rows = 1000000;
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// 写入 csv header
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const header: string[] = [];
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for (let i = 0; i < columns; i++) {
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header.push(`col${i}`);
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}
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process.stdout.write(header.join(',') + '\n');
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for (let i = 0; i < rows; i++) {
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const row: string[] = [];
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for (let j = 0; j < columns; j++) {
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row.push(`r${i} c${j}`);
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}
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process.stdout.write(row.join(',') + '\n');
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}
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