---
# System prepended metadata

title: Javascript number

---

# Javascript number

Max 
* 253-1
* +/- 9,007,199,254,740,991

JS 做任何序列化都會因為沒有型別導致型別受限, int 或 uint 只能選一種


## Reference
1. https://stackoverflow.com/questions/307179/what-is-javascripts-highest-integer-value-that-a-number-can-go-to-without-losin
2. https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Number/MAX_SAFE_INTEGER