选择具有特定 get 变量的 href 的链接

Question

in the example below - how to select the link having c=ni

 let a = 'c=ni'; let target = '...'; // select `alink` having `a` inside its href //target.addClass('act');

 .act{background:orange;}

 <script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script> <a class='alink' href='index.php?c=kb'>lorem</a> <br> <a class='alink' href='index.php?c=ni'>lorem</a>

Answer 1

Plain JS

You could use querySelector with * wildcard

 let a = 'c=ni'; let target = document.querySelector(`a[href*='${a}']`) target.classList.add('act');

 .act{background:orange;}

 <script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script> <a class='alink' href='index.php?c=kb'>lorem</a> <br> <a class='alink' href='index.php?c=ni'>lorem</a>

jQuery

The query selector is the same, use first() to select one only

 let a = 'c=ni'; $(`a[href*='${a}']`).first().addClass('act')

 .act{background:orange;}

 <script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script> <a class='alink' href='index.php?c=kb'>lorem</a> <br> <a class='alink' href='index.php?c=ni'>lorem</a>

Answer 2

You can use attribute selectors. They can be used for javascript, jQuery or CSS. Read more about Attribute selectors here

 let target = $('.alink[href*="c=ni"]'); target.addClass('act');

 .act{background:orange;}

 <script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script> <a class='alink' href='index.php?c=kb'>lorem</a> <br> <a class='alink' href='index.php?c=ni'>lorem</a>