新增: - backend/venv/ - Python 虚拟环境 - backend/start.sh - 启动脚本(使用虚拟环境) - backend/requirements.txt - 依赖列表 - .gitignore - 忽略虚拟环境和缓存文件 说明: - 每个项目使用独立虚拟环境 - 避免依赖冲突 - 启动脚本自动创建和激活虚拟环境
is-bigint 
Is this an ES BigInt value?
Example
var isBigInt = require('is-bigint');
assert(!isBigInt(function () {}));
assert(!isBigInt(null));
assert(!isBigInt(function* () { yield 42; return Infinity; });
assert(!isBigInt(Symbol('foo')));
assert(isBigInt(1n));
assert(isBigInt(Object(1n)));
Tests
Simply clone the repo, npm install, and run npm test
