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<!DOCTYPE html> <html> <body> <h2>JavaScript try catch</h2> <p>Please input a number between 5 and 10:</p> <input id="demo" type="text"> <button type="button" onclick="myFunction()">Test Input</button> <p id="p01"></p> <script> function myFunction() { const message = document.getElementById("p01"); message.innerHTML = ""; let x = document.getElementById("demo").value; try { if (x.trim() == "") throw "is empty"; if (isNaN(x)) throw "is not a number"; x = Number(x); if (x > 10) throw "is too high"; if (x < 5) throw "is too low"; } catch (err) { message.innerHTML = "Input " + err; } finally { document.getElementById("demo").value = ""; } } </script> </body> <!-- /js/tryit.asp?filename=tryjs_finally_error Thu, 06 Feb 2025 19:15:29 GMT --> </html>
