unprintables.md

Find Unprintables

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<textarea rows="20" cols="80" id="input"></textarea> <script type="text/javascript"> var textarea = document.getElementById("input"); var table = document.getElementById("output"); textarea.addEventListener("change", handleInput); textarea.addEventListener("input", handleInput); function handleInput() { var buffer = ""; var input = textarea.value.split(""); input.forEach(function (char) { var charcode = char.charCodeAt(0); var rowstyle = ""; if (charcode < 32 || charcode > 126) { if (charcode === 10 || charcode === 13) { rowstyle = "background-color: #eae300;"; } else { rowstyle = "background-color: #ea3600"; } } else { rowstyle = ""; } buffer += '' + char + "" + charcode + ""; }); table.innerHTML = buffer; } </script>