JSFiddle - React, Tailwind, and code Playground

by joepenzo

HTML

<div class="text" id="text">
Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum.
</div>

<div class="text" id="text2">
Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum.
</div>

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

CSS

body { font-family: "Courier New", Courier, monospace; font-size: 15px; }

#text { border: 1px solid black; margin-bottom: 50px;}

JavaScript

var text = $('#text').text(),
    len = text.length,
    width = $('#text').width(),
    span = $('<span />').append('-').appendTo('#sandbox'),
    charWidth = span.width(),
    charsPerRow = Math.floor(width/charWidth);

var breakingIndexes = [],
    gRowStart = 0,
    gRowEnd = charsPerRow;

while(gRowEnd < len){
    var rowEnd = text.substring(gRowStart, gRowEnd).lastIndexOf(' ');
    breakingIndexes.push(gRowStart + rowEnd);
    gRowStart = gRowStart + rowEnd + 1; // next start is the next char
    gRowEnd = gRowStart + charsPerRow;
}

var text2 = $('#text2').text();
var start = 0
var newText = '';

for(var i=0; i < breakingIndexes.length; i++) {
    newText += '<span style="border: 1px solid; display: inline-block;">' + text2.substring(start, breakingIndexes[i]) + '</span>';
    start = breakingIndexes[i]; 
}

$('#text2').html(newText);