Input框搜索关键字高亮显示

ruleTitle(text, val) {
    if (!val) return text;
    const result = text.replace(
        new RegExp(val, "g"),
    `    <span class="primary_title">${val}</span>`
    );
    return result;
}

//这个是HTML页面中传递的值

v-html="ruleTitle(item.title,Inputvideo)"