How to get the bootstrap search bar

How to use Bootstrap to get the value of the search bar: Determine the ID or name of the search bar. Use JavaScript to get DOM elements. Gets the value of the element. Perform the required actions.

How to use Bootstrap to get the value of the search bar

Bootstrap provides a simple search bar component that allows access to user input through its .form-control class. To get the value of the search bar, you can use the following steps:

1. Determine the ID or name of the search bar

The HTML of the search bar component is usually as follows:

 <code class="html"><div class="form-group"> <input type="text" class="form-control" id="search-input" placeholder="搜索"> </div></code>

2. Use JavaScript to get DOM elements

You can use document.getElementById() or document.querySelector() methods to get the DOM element as follows:

 <code class="javascript">const searchInput = document.getElementById("search-input");</code>

3. Get the value of the element

Use value attribute to get the input value in the search bar:

 <code class="javascript">const searchValue = searchInput.value;</code>

4. Perform the required actions

After getting the search value, you can perform any action you need, such as making an AJAX request or updating the page content:

 <code class="javascript">console.log(searchValue);</code>

Sample code

Here is a complete example of how to use Bootstrap to get the value of the search bar:

 <code class="html"><div class="form-group"> <input type="text" class="form-control" id="search-input" placeholder="搜索"> </div> <script> const searchInput = document.getElementById("search-input"); searchInput.addEventListener("input", () => { const searchValue = searchInput.value; console.log(searchValue); }); </script></code>

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