You could use the same technique as asm.js for acquiring and handling integers. Unary `+` always produces a Number or an exception. Bitwise operators treat thei

You could use the same technique as asm.js for acquiring and handling integers. Unary `+` always produces a Number or an exception. Bitwise operators treat their operands as a sequence of 32 bits, so a bitwise OR with 0 will cast the value to a 32-bit integer: +value|0 There's also TypedArray [0]. I think you'll be interested in the BigInt proposal [1] [2], which is stage 3. It's already available in Chrome, and behind a flag in Firefox. Now that it's possible to accurately represent 64-bit values, we're getting BigInt64Array and BigUint64Array. [0] https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/TypedArray https://developer.mozilla.org/en-US/docs/Web/JavaScript/Refe... [1] https://github.com/tc39/proposal-bigint https://github.com/tc39/proposal-bigint [2] http://2ality.com/2017/03/es-integer.html http://2ality.com/2017/03/es-integer.html