Edit fiddle - JSFiddle - React, Tailwind, and code Playground

JSFiddle - React, Tailwind, and code Playground

HTML

<input type="checkbox" id="someid_1" checked/>
<input type="checkbox" id="someid_2" checked/>
<input type="checkbox" id="someid_3"/>
<input type="checkbox" id="someid_4"/>

JavaScript

var n = $('input:checkbox[id^="someid_"]:checked').length;
$('input:checkbox[id^="someid_"]:checked').each(function(){
    alert($(this).attr("id"));});

alert(n)

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JSFiddle - React, Tailwind, and code Playground

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JavaScript

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