用javascript添加aria屬性

Question

我正在嘗試將aria-required =“ true”屬性添加到wordpress中忍者表單的某些表單元素中。 我正在使用頁眉/頁腳腳本注入插件。 但是我似乎無法使我的代碼真正起作用。 任何幫助將不勝感激！

http://champion.magnet.today/contact/

 <script> function codeAddress() { var x = document.getElementsByClassName("nf-element"); var i; for (i = 0; i < x.length; i++) { x[i].addAttribute("aria-required", "true"); } window.onload = codeAddress } </script> 

 <div class="nf-field-element"> <input id="nf-field-17" name="nf-field-17" class="ninja-forms-field nf-element" type="text" value="" placeholder="First Name"> </div> 

Answer 1

嘗試替換x[i].addAttribute("aria-required", "true"); 與x[i].setAttribute("aria-required", "true");

Answer 2

您需要使用setAttribute 。 另外window.load應該在codeAddress函數之外

 function codeAddress() { var x = document.getElementsByClassName("nf-element"); var i; for (i = 0; i < x.length; i++) { console.log(x[i]) x[i].setAttribute("aria-required", "true"); } } window.onload = codeAddress 

 <div class="nf-field-element"> <input id="nf-field-17" name="nf-field-17" class="ninja-forms-field nf-element" type="text" value="" placeholder="First Name"> </div>