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jeffmo/main.js

Created May 4, 2016 17:02
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main.js
// @flow
const a: number = 'asdf';
const b: string = 2;
Raw
output
> flow version
Flow, a static type checker for JavaScript, version 0.24.0
> flow check
main.js:3
3: const a: number = 'asdf';
^^^^^^ string. This type is incompatible with
3: const a: number = 'asdf';
^^^^^^ number
main.js:4
4: const b: string = 2;
^ number. This type is incompatible with
4: const b: string = 2;
^^^^^^ string
Found 2 errors
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