JSFiddle - React, Tailwind, and code Playground

HTML

<div id="output"></div>
<div id="data-loop"></div>
<div id="item-loop"></div>

CSS

#output, #data-loop, #item-loop {
 background: #181818;
 color: #FFF;
 height: 40px;
 line-height: 40px;
 padding: 5px; 
 text-align: center;
}

JavaScript

var data = [
    ['lorem', 'ipsum', 'dolor'],
    ['sit', 'amet'],
    ['eli'],
    ['cras', 'sed', 'leo', 'lacinia']
    ];


function doSearch() {

    dataLoop: for (var dataIndex = 0; dataIndex != data.length; dataIndex++) {

        $('#data-loop').text('Data Loop Index: ' + dataIndex);

        itemLoop: for (var itemIndex = 0; itemIndex != data[dataIndex].length; itemIndex++) {

            $('#item-loop').text('Item Loop Index: ' + itemIndex);

            if (data[dataIndex][itemIndex] == 'sed') {

                $('#output').text('Data item found');
                break dataLoop;

            }

        }

    }


}


doSearch();