1030

1030 - '{0}' modifier already seen.

regexFind: /(readonly|static|async)\s+(readonly|static|async)\s+/
regexReplace: $1

Remove duplicate modifier. Each class member can only have one instance of the same modifier (readonly, static, async).

class MyClass {
-  readonly readonly property = 'test'
+  readonly property = 'test'
}

Explanation: Remove duplicate readonly modifier from property declaration

class DataClass {
-  static static method() {
+  static method() {
     return 'data'
   }
}

Explanation: Remove duplicate static modifier from method declaration

npx tsc ./docs/1030/index.ts --noEmit --pretty

docs/1030/index.ts:2:12 - error TS1030: 'readonly' modifier already seen.

2   readonly readonly property = 'test'
            ~~~~~~~~

OR (without --pretty flag):

docs/1030/index.ts(2,12): error TS1030: 'readonly' modifier already seen.