[Solved] error ‘xxx‘ is never reassigned. Use ‘const‘ instead prefer-const

If let or var variables are used to declare in TS, an error will appear:

Slint: identifier ‘errmsg’ will never be reassigned; Use ‘const’ instead of ‘let’. (prefer const)

code snippet:

Solution:

1. Use const to declare
2. Open tslint.json file under the project, set prefer-const to false.

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