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BigInt for Large Numbers - Variables & Data Types | JavaScript | Repovive

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JavaScript22 sections · 783 units18h total

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BigInt for Large Numbers

Beyond number limits

Regular numbers lose precision above $2^{53}$ . For larger integers, use BigInt:

const big = 9007199254740993n  // Note the 'n' suffix
const also = BigInt("9007199254740993")

BigInt can represent arbitrarily large integers. However, you can't mix BigInt and regular numbers in operations:

5n + 3    // Error!
5n + 3n   // 8n (works)

BigInt is for specific use cases like cryptography or large IDs, not everyday math.