for (... in ...) statements must be filtered with an if statement (forin) code example

Example 1: for (... in ...) statements must be filtered with an if statement (forin)

for (const errorName in state.errors) {
      if (state.errors.hasOwnProperty(errorName)) {
        switch (errorName) {

Example 2: for (... in ...) statements must be filtered with an if statement (forin)

function isFiltered({statements}: ts.Block): boolean {
    switch (statements.length) {
        case 0: return true;
        case 1: return statements[0].kind === ts.SyntaxKind.IfStatement;
        default:
            return statements[0].kind === ts.SyntaxKind.IfStatement && nodeIsContinue((statements[0] as ts.IfStatement).thenStatement);
    }

}

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Misc Example