JSFiddle - React, Tailwind, and code Playground

HTML

<textarea id="txt">
  1. Line 1
  2. Line 2
</textarea>

<button id="clk">Click Me</button>

JavaScript

//To normalise newlines
$.valHooks.textarea = {
    get: function(elem) {
        return elem.value.replace( /\r?\n/g, "\r\n" );
    }
};


$('#clk').click(function() {
    console.log( $("#txt").val() );
});