搜索高亮

function HighLight() {
    const keyword = '00';
    const str = '12300998800123'
    const matchText = new RegExp(keyword, 'ig');
    const string = str.replace(matchText, `<mark style="color: #ff4b01">${  keyword  }</mark>`);
    return <div dangerouslySetInnerHTML={{__html: string}} />;
  }

RegExp.$1

RegExp.$1
https://developer.mozilla.org/zh-CN/docs/Web/JavaScript/Reference/Global_Objects/RegExp/n

.replace(reg,`<mark class='highlight'>$1</mark>`);