HTML textarea to javascript and keep line break

Question

I am trying to pass a HTML <textarea> through JavaScript, and want to keep the line breaks. Ex when I write:

Line a
Line b

It comes out as:

Line a Line b

My code:

function textwrite(){
  thetext = document.getElementById("text_change").value;    
  document.getElementById("demo").innerHTML = thetext;
}

<textarea id='text_change' oninput='textwrite()'></textarea>
    
<p id="demo"></p>

And I don't want to use <pre> tag.

Narial

Possible duplicate of JavaScript: How to add line breaks to an HTML textarea? – Car

Possible duplicate of Preserve line breaks in textarea – Dragoman

Answer 1

Replace \n,\r,\n\r with </br> in java script:

var myLineBreak = thetext.replace(/\r\n|\r|\n/g,"</br>");

function textwrite(){
    	thetext = document.getElementById("text_change").value;  
      var myLineBreak = thetext.replace(/\r\n|\r|\n/g,"</br>");

    	document.getElementById("demo").innerHTML = myLineBreak;
    }

<textarea id='text_change' oninput='textwrite()'></textarea>
    
    <p id="demo"></p>

Advancement

Answer 2

Use white-space:

The white-space CSS property sets how white space inside an element is handled.

with value pre-wrap where

Sequences of white space are preserved. Lines are broken at newline characters, at <br>, and as necessary to fill line boxes.

function textwrite(){
  thetext = document.getElementById("text_change").value;    
  document.getElementById("demo").innerHTML = thetext;
}

#demo { white-space: pre-wrap; }

<textarea id='text_change' oninput='textwrite()'></textarea>
    
<p id="demo"></p>

Cooperstein

Want to add some comments that explain why this solves the problem? – Exsanguine

@RyanWilson, updated the answer with some documentation....hope that makes more sense now......thanks – Cooperstein

Thank you, that is much better. +1 from me. – Exsanguine

This is the correct answer, the string saves those line breaks itself, but you have to specify the CSS to show it, thx! – Stupefy

Answer 3

To do that, first set the multiline property of the textBox to true and then include at the end of each line this: "\r\n"

Gerrilee