JSFiddle - React, Tailwind, and code Playground

HTML

<p class="piece1"></p>
<p class="piece2"></p>
<p class="piece3"></p>
<p class="piece4"></p>

JavaScript

var str = '얼마나 3명이상 365일';
var checkFlag = str.indexOf('명이상'); //return 8
alert()

var str = str.replace(/[^0-9]/g,"");




//$('.piece1').text(str[0]);
//$('.piece2').text(str[1]);
$('.piece3').text(checkFlag);