47 lines
1.5 KiB
HTML
Executable file
47 lines
1.5 KiB
HTML
Executable file
<!DOCTYPE html>
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<html lang="en">
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<head>
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<meta charset="UTF-8">
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<meta name="viewport" content="width=device-width, initial-scale=1.0">
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<title>Palíndroms i nombres capicua</title>
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</head>
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<body>
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<p id="ex01"></p>
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<script>
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var userInput = prompt("Enter a string to check", "Tramaran anar a Mart");
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document.getElementById("ex01").innerHTML = returnMessage(inputToCheck);
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function returnMessage(inputToCheck) {
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if (inputToCheck.isEmpty()){
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return "L\'entrdada no és ni un palíndrom, ni un nombre capicua.";
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} else if (!isNaN(userInput)) {
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if (checkUserInput(inputToCheck)) {
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return "L\'entrada és un palíndrom.";
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}
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} else {
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if (checkUserInput(inputToCheck)){
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return "L\'entrada és un nombre capicua.";
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}
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}
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return "L\'entrdada no és ni un palíndrom, ni un nombre capicua.";
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}
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function checkUserInput (numToCheck) {
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var returnVar = true;
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for (var i=0; i<(((numToCheck.length%2)==0) ? (parseInt(numToCheck.length/2)-1) : parseInt(numToCheck.length/2)); i++){
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if (!(numToCheck[i]==numToCheck[numToCheck.length -1 - i])) {
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returnVar = false;
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break;
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}
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}
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return returnVar;
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}
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</script>
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</body>
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</html> |