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Editorial Team
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Asked: 2026-05-26T22:24:35+00:00

How do I change the case of a character in a textbox/textarea to lowercase

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How do I change the case of a character in a textbox/textarea to lowercase onchange?

<html>
<head>
<title>Page Title</title>
<script>
function f2(string)
{
string=string.toUpperCase();
alert(string);
}
</script>
</head>
<body>
<p>Here are my text entry objects:</p>
<form>
<p>
Change the scripting (still using one function) so that the text from the alert is shown in uppercase from the textbox but lowercase from the textarea:<br>
<textarea onchange='f2(this.value);'></textarea>
</p>
</form>
</body>
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1 Answer

  1. Editorial Team

    Have you tried;

    function f2(textarea)
{
    string = textarea.value;
    alert(string);
    string = string.toLowerCase();

    textarea.value = string;
}

    With the modification to the onChange as;

    <textarea onchange='f2(this);'></textarea>
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