JSFiddle - React, Tailwind, and code Playground

by oscard

HTML

<input type="checkbox" id="id_chk1" class="chkbox" value="1" />Check 1<br/>
<input type="checkbox" id="id_chk2" class="chkbox" value="2" />Check 2<br/>
<input type="checkbox" id="id_chk3" class="chkbox" value="3" />Check 3<br/>
<input type="checkbox" id="id_chk4" class="chkbox" value="4" />Check 4<br/>
<input type="checkbox" id="id_chk5" class="chkbox" value="5" />Check 5<br/>
<input type="checkbox" id="id_chk6" class="chkbox" value="6" />Check 6<br/>
<input type="checkbox" id="id_chk7" class="chkbox" value="7" />Check 7<br/>

JavaScript

$(document).ready(function() {
    var $chkboxes = $('.chkbox');
    var lastChecked = null;

    $chkboxes.click(function(e) {
        if(!lastChecked) {
            lastChecked = this;
            return;
        }

        if(e.shiftKey) {
            var start = $chkboxes.index(this);
            var end = $chkboxes.index(lastChecked);

            $chkboxes.slice(Math.min(start,end), Math.max(start,end)+ 1).prop('checked', lastChecked.checked);

        }

        lastChecked = this;
    });
});