BigInt.asIntN()
The BigInt.asIntN
static method clamps a BigInt value to a signed integer value, and returns that value.
Syntax
BigInt.asIntN(bits, bigint);
Parameters
bits
-
The amount of bits available for the integer size.
bigint
-
The BigInt value to clamp to fit into the supplied bits.
Returns
The value of bigint
modulo
2^bits
, as a signed integer.
Examples
Staying in 64-bit ranges
The BigInt.asIntN()
method can be useful to stay in the range of 64-bit
arithmetic.
const max = 2n ** (64n - 1n) - 1n;
BigInt.asIntN(64, max);
// ↪ 9223372036854775807n
BigInt.asIntN(64, max + 1n);
// ↪ -9223372036854775808n
// negative because of overflow
Specifications
Specification |
---|
ECMAScript Language Specification # sec-bigint.asintn |
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