JSFiddle - React, Tailwind, and code Playground

HTML

<div id="text"></div>

JavaScript

var string = "This is some long text and we need to show it on only two lines.".split(" ");
    var first_line = string.slice(0,5).join(" ");
    var second_line = string.slice(6,10).join(" ");
    
    var display_string = first_line + "<br />" + second_line;
    if(string.length > 10) display_string += "...";
    $("#text").html(display_string);