The search function is an integral part of web applications, which allows users to quickly find the information they need on the website. In this article, I'll show you how to implement a basic search functionality using HTML and some simple JavaScript code.
First, we need to create a form to receive the user’s search query. We can use the form element in HTML to implement this form, as shown below:
<form> <input type="text" id="searchInput" placeholder="Search..."> <button type="submit" id="searchButton">Search</button> </form>
In the above code, we use two elements, one is the input element, which is a text field for receiving The search query entered by the user. We also added a placeholder text "Search..." to provide a hint for the input box.
The other is the button element, which is a button that allows users to submit a search form. We can also create a submit button using the type attribute of the input element.
Next, we need to add some JavaScript code to handle the user's search request and return the results. We can use the DOM API in JavaScript to get the search query entered by the user and the search results from the website.
Below is the complete HTML code, including some basic JavaScript code to handle search requests.
<!DOCTYPE html>
<html>
<head>
<title>Search Example</title>
</head>
<body>
<form>
<input type="text" id="searchInput" placeholder="Search...">
<button type="submit" id="searchButton">Search</button>
</form>
<ul id="searchResults">
<!-- Search results will be added here -->
</ul>
<script>
const searchInput = document.getElementById('searchInput');
const searchButton = document.getElementById('searchButton');
const searchResults = document.getElementById('searchResults');
const searchHandler = event => {
event.preventDefault();
const query = searchInput.value;
const results = performSearch(query);
displayResults(results);
};
const performSearch = query => {
// Perform search logic here...
};
const displayResults = results => {
searchResults.innerHTML = '';
for (let result of results) {
const listItem = document.createElement('li');
listItem.textContent = result;
searchResults.appendChild(listItem);
}
};
searchButton.addEventListener('click', searchHandler);
searchInput.addEventListener('keydown', event => {
if (event.key === 'Enter') {
searchHandler(event);
}
});
</script>
</body>
</html>In the above code, we first obtain the form control and search result elements, and then use the addEventListener method to add event handlers for the search button and search input box.
When the user submits the search form, we prevent the default behavior (in this case reloading the page) and get the text of the user's query. We pass the query to the performSearch function and the results to the displayResults function.
In the performSearch function, we can perform any search logic and return results that match the query. In this example, we just hardcoded some fake data to simulate the search results.
In the displayResults function, we use innerHTML to clear all results, then iterate through the results array and create a li element for each result and add it to the ul element.
Finally, we added a keyboard event listener so that the user can submit a search query by pressing Enter in the input box.
By implementing this simple search function, we can provide users with a better website experience and make it easier for them to find the information they need.
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