Convert slider to external javascript -

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hi have slider on page updates number using javascript. need put javascript out of html external js file. appreciated. sorry if explanation not clear. thanks.

<script> function outputupdate(n) {   document.queryselector('.names').value = n; } </script>  <form name="infonum"> <textarea rows="3" name="output" onclick="this.select()"></textarea><br /> <input type="button" class="button" value="go" onclick="populateform(this.form.names.value)"><br /> <input type=range class=rangeinput name="numnames" min=1 value=1 max=15 step=1 oninput="outputupdate(value)"><br /> <output for=rangeinput class=names>5</output> </form>

you need create new file myjsfile.js , paste code (inside tag). external java script files reference follows in html

<html> <head> <script type="text/javscript" src="myjsfile.js"></script> ....

js file

function outputupdate(n) {   document.queryselector('.names').value = n; }

html

<html> <head>     <script type="text/javscript" src="myjsfile.js"></script> </head> <body>  <form name="infonum"> <textarea rows="3" name="output" onclick="this.select()"></textarea><br /> <input type="button" class="button" value="go" onclick="populateform(this.form.names.value)"><br /> <input type=range class=rangeinput name="numnames" min=1 value=1 max=15 step=1 oninput="outputupdate(value)"><br /> <output for=rangeinput class=names>5</output> </form> </body> </html>

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