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<!DOCTYPE html> <html> <body> <h2>With "use strict":</h2> <h3>Writing to a read-only property is not allowed.</h3> <p>Activate debugging in your browser (F12) to see the error report.</p> <script> "use strict"; const obj = {}; Object.defineProperty(obj, "x", { value: 0, writable: false }); obj.x = 3.14; // This will cause an error </script> </body> <!-- /js/tryit.asp?filename=tryjs_strict_readonly Thu, 06 Feb 2025 19:15:29 GMT --> </html>
