Use hasProperty instead

2025-11-18 17:21:48 +00:00 · 2015-03-06 22:56:59 +01:00
parent b4d723217e
commit 129ef7222c
1 changed files with 1 additions and 1 deletions
@@ -9160,7 +9160,7 @@ module ts {
                    else {
                        var identifierName = (<Identifier>catchClause.variableDeclaration.name).text;
                        var locals = catchClause.block.locals;
-                        if (locals && locals[identifierName]) {
+                        if (locals && hasProperty(locals, identifierName)) {
                            var localSymbol = locals[identifierName]
                            if (localSymbol && (localSymbol.flags & SymbolFlags.BlockScopedVariable) !== 0) {
                                grammarErrorOnNode(localSymbol.valueDeclaration, Diagnostics.Cannot_redeclare_identifier_0_in_catch_clause, identifierName);