JSFiddle - React, Tailwind, and code Playground

by JInks Peng

HTML

<h2>测试去除字符串左右两边的空格</h2>
<input type='text' id='text' value='   需要过滤空格   ' />
<input type='button' id='btn1' value='过滤' ／>

JavaScript

window.onload = function() {

  var text = document.getElementById('text'),
      btn1 = document.getElementById('btn1');

  btn1.onclick = function() {
     text.value = text.value.replace(/^(\s|\u00A0)+|(\s|\u00A0)+$/g,''); 
      }   
}