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Incorrect error for parameter initializer referencing preceding parameter #26731

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Incorrect error for parameter initializer referencing preceding parameter#26731
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BugA bug in TypeScriptFixedA PR has been merged for this issue

Description

@ajafff
Klaus Meinhardt (ajafff)
opened on Aug 29, 2018

TypeScript Version: 3.1.0-dev.20180829

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Code

// @target: ES2015
function test(foo: string, bar = foo) {}

Expected behavior:
No error

Actual behavior:
Error Cannot find name 'foo'. in the initializer of bar

Playground Link:

Related Issues:
#26719
caused by #26317 //cc Wenlu Wang (@Kingwl)

Activity

  1. Kingwl commented on Aug 29, 2018

    @Kingwl
    Wenlu Wang (Kingwl)
    on Aug 29, 2018
    Contributor

    sorry about the broken
    i'll take a look soon 😢

  2. Ryan Cavanaugh (RyanCavanaugh)
    added
    BugA bug in TypeScript
    on Aug 29, 2018
  3. Nathan Shively-Sanders (sandersn)
    closed this as completedin #26762on Aug 30, 2018
  4. Ryan Cavanaugh (RyanCavanaugh)
    added
    FixedA PR has been merged for this issue
    on Aug 30, 2018
  5. microsoft
    locked as resolved and limited conversation to collaborators on Oct 21, 2025
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