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Type checking is not working properly with promises.  #16369

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Type checking is not working properly with promises. #16369
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@joeuy
joeuy
opened on Jun 8, 2017

TypeScript Version: 2.2.1 / nightly (2.2.0-dev.201xxxxx)

Code

var p1: Promise<{ a: string }>;
var p2: Promise<{ a: string, b: string }>;
p2 = p1;

link to playground

Expected behavior:
Type error

Actual behavior:
No error

Activity

  1. RyanCavanaugh commented on Jun 8, 2017

    @RyanCavanaugh
    Ryan Cavanaugh (RyanCavanaugh)
    on Jun 8, 2017
    Member

    See #15104

  2. Ryan Cavanaugh (RyanCavanaugh)
    added
    DuplicateAn existing issue was already created
    on Jun 8, 2017
  3. joeuy
    closed this as completedon Jun 8, 2017
  4. microsoft
    locked and limited conversation to collaborators on Jun 14, 2018
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