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javascripthtmlcssunderline

HTML underline button

Hi there I am working on making a word processor, and need to make a button to underline the text in the text area. I have made one button that makes the text italic but unsure on the underline button. Any help would be appreciated 

<textarea rows="10" cols="100" id="myP" >
      Type text here...
</textarea>
      <br>
      <br>
<button type="button" onclick="myFunction()">Set font Italic</button>

<script>
function myFunction() {
document.getElementById("myP").style.fontStyle = "italic";
}
</script>
Solution

  • Here's a solution:

    <button type="button" onclick="myFunction2()">underline</button>

<script>
function myFunction2() {
document.getElementById("myP").style.textDecoration = "underline";
}
</script>