error TS5052: Option 'exactOptionalPropertyTypes' cannot be specified without specifying option 'strictNullChecks'.
tests/cases/compiler/regexpExecAndMatchTypeUsages.ts(20,9): error TS2322: Type 'RegExpMatchArray' is not assignable to type 'RegExpExecArray'.
  Property 'index' is optional in type 'RegExpMatchArray' but required in type 'RegExpExecArray'.


!!! error TS5052: Option 'exactOptionalPropertyTypes' cannot be specified without specifying option 'strictNullChecks'.
==== tests/cases/compiler/regexpExecAndMatchTypeUsages.ts (1 errors) ====
    export function foo(matchResult: RegExpMatchArray, execResult: RegExpExecArray) {
        matchResult[0].length;
        matchResult[999].length;
        matchResult.index + 0;
        matchResult.input.length;
        matchResult.groups["someVariable"].length;
        matchResult.groups = undefined;
    
        execResult[0].length;
        execResult[999].length;
        execResult.index + 0;
        execResult.input.length;
        execResult.groups["someVariable"].length;
        execResult.groups = undefined;
    
        if (Math.random()) {
            matchResult = execResult;
        }
        else {
            execResult = matchResult
            ~~~~~~~~~~
!!! error TS2322: Type 'RegExpMatchArray' is not assignable to type 'RegExpExecArray'.
!!! error TS2322:   Property 'index' is optional in type 'RegExpMatchArray' but required in type 'RegExpExecArray'.
        }
    }
    