Safely create a BigInt from a numerical string, even one larger than MAX_SAFE_INTEGER.
An ES-spec-compliant shim/polyfill/replacement for JS language Math and Number constant values that works as far down as ES3
Validate if a value is a positive integer between 0 & Number.MAX_SAFE_INTEGER
YAML/JSON parser and serializer that preserves formatting of the original numerical values (i.e. 1.0 vs 1) and handles integers bigger than MAX_SAFE_INTEGER
Base62 + big.js | Convert Strings an Numbers to Base62 without worrying about overflowing Number.MAX_SAFE_INTEGER