function

util.types.isBigInt64Array

function isBigInt64Array(
value: unknown
): value is BigInt64Array<ArrayBufferLike>;

Returns true if the value is a BigInt64Array instance.

util.types.isBigInt64Array(new BigInt64Array());   // Returns true
util.types.isBigInt64Array(new BigUint64Array());  // Returns false