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by james-mcelwain 2085 days ago
No, TypeScript is compile time only. There's no runtime type info.
1 comments
whatshisface 2085 days ago
The parent comment is saying that if you write the string twice, you can get the compiler to check #1 and the runtime to use #2.
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ricksharp 2085 days ago
Not exactly (there is no duplication), a string constant in typescript is it's own type:

  const sql = 'SELECT ...';
  type SQL = typeof sql; 
  // type SQL = "SELECT ..."
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