React Native cannot find name of Global Object?

I use the global variable in React Native, Eg: global.gScreen = { };

When i use gScreen, eslint reports can not find name 'gScreen'.

I have try this:

1. In tsconfig.json add "node" to compilerOptions.types not working{"compilerOptions": {..."types": ["node"]...}}

2. global.d.ts declare global not working

3. .eslintrc.js globals config not working