ReasonJun

If typescript cannot infer the type and need to do type annotation 1. In case of unilaterally returning any type const json = '{"x": 1, "y": 2}'; const coordinates = JSON.parse(json); console.log(coordinates); 2. If you declare a variable first and initialize it later => In this case, it is inferred as any. let greeting greeting = 'hello' // let greeting: any 3. When the value to be assigned to ..