替换占位符并订阅 btn 文本答案

【问题标题】：replace placeholder and subscribe btn text替换占位符并订阅 btn 文本
【发布时间】：2022-11-25 23:19:25
【问题描述】：

<div class="gdlr-core-newsletter-item gdlr-core-item-pdlr gdlr-core-item-pdb  gdlr-core-style-rectangle" style="padding-bottom: 0px ;"  id="mynwsltr"  ><div class="newsletter newsletter-subscription"><form class="gdlr-core-newsletter-form clearfix" method="post" action="/?na=s" onsubmit="return newsletter_check(this)"><div class="gdlr-core-newsletter-email"><input class="newsletter-email gdlr-core-skin-e-background gdlr-core-skin-e-content" placeholder="Your Email Address" type="email" name="ne" size="30" required /></div><div class="gdlr-core-newsletter-submit"><input class="newsletter-submit" type="submit" value="Subscribe"  /></div></form></div>

我想替换Your Email Address（到“写电子邮件”）和Subscribe（到“发送”）表格中div id mynwsltr下的文本。知道如何使用 jquery 做到这一点吗？

【问题讨论】：

标签： jquery

【解决方案1】：

使用 querySelector 通过 data 属性查找元素。

然后使用setAttribute()函数覆盖它

document.querySelector('input[placeholder = "Your Email Address"]').setAttribute('placeholder', 'Write email');
document.querySelector('input[value = "Subscribe"]').setAttribute('value', 'Send');

<div class="gdlr-core-newsletter-item gdlr-core-item-pdlr gdlr-core-item-pdb  gdlr-core-style-rectangle" style="padding-bottom: 0px ;"  id="mynwsltr"  >
<div class="newsletter newsletter-subscription">
   <form class="gdlr-core-newsletter-form clearfix" method="post" action="/?na=s" onsubmit="return newsletter_check(this)">
      <div class="gdlr-core-newsletter-email"><input class="newsletter-email gdlr-core-skin-e-background gdlr-core-skin-e-content" placeholder="Your Email Address" type="email" name="ne" size="30" required /></div>
      <div class="gdlr-core-newsletter-submit"><input class="newsletter-submit" type="submit" value="Subscribe"  /></div>
   </form>
</div>

【讨论】：