Script SpringsISSUE #10 of 29

bigint · arbitrary precision

SparkyVSNaN the Trickster

Sparky saysBigInt holds integers beyond the safe-integer limit — written with an n suffix.

When you need integers larger than 2^53 (IDs, cryptography, big counters), use BigInt: 9007199254740993n or BigInt(x). BigInts are exact at any size but can't mix with regular numbers in math without explicit conversion, and they have no decimals.

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BigInt: arbitrary-precision integers (n suffix)
For values beyond Number.MAX_SAFE_INTEGER
Cannot mix BigInt and Number in math directly
Integers only — no decimals

NaN the Trickster attacks — common mistakes

Mixing 1n + 1 (throws TypeError)
Using BigInt for values that fit in a normal number
Expecting decimal support

Boss battleAdd two BigInts past the safe-integer limit and show the exact result.

Example code

<!doctype html><html><head><meta charset="utf-8"></head>
<body style="background:#06040d;color:#e6e0ff;font-family:monospace;padding:20px"><pre id="o"></pre>
<script>const big = 9007199254740991n + 10n;
document.getElementById('o').textContent = 'exact: ' + big;</script></body></html>

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