javascript - How to show/hide DIV on selection of drop-down value with pure JS (no libraries)?
Get the solution ↓↓↓I have tide tables from several locations and each tide table is inside a div. Location is choosen from a dropdown menu. When the page opens it shows the first location tide table by default. When I change location, it selects the corresponding div and only shows the tide table inside that div, ignoring the other divs. It is working fine (thanks to @charlietfl), but using Jquery is causing problems with other parts of my homepage, so I am looking for a differet solution to achieve the same result.
This is what I have now:
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<script>
$('select#location').change(function() {
$('.box').hide().filter('.' + this.value).show();
// set the value and trigger change on page load
}).val('A').change()
</script>
<div>
<select id="location">
<option value="A">Location A</option>
<option value="B">Location B</option>
<option value="C">Location C</option>
</select>
</div>
<div class="box A">Tide Location A</div>
<div class="box B">Tide Location B</div>
<div class="box C">Tide Location C</div>
Is there any way to get the same result, using pure JS (no libraries)? Thanks in advance.
Answer
Solution:
Please try the following example
document.querySelector("select#location").addEventListener("change", () => {
display(event.target.value);
});
const boxs = document.querySelectorAll("div.box");
function display(value) {
for (const box of boxs) {
if (box.classList.contains(value)) {
box.classList.remove("hide");
} else {
box.classList.add("hide");
}
}
}
display("A");
.hide {
display: none;
}
<div>
<select id="location">
<option value="A">Location A</option>
<option value="B">Location B</option>
<option value="C">Location C</option>
</select>
</div>
<div class="box A">Tide Location A</div>
<div class="box B">Tide Location B</div>
<div class="box C">Tide Location C</div>
Answer
Solution:
Use CSS display property to the div
function myFunction() {
var x = document.getElementById("myDIV");
if (x.style.display === "none") {
x.style.display = "block";
} else {
x.style.display = "none";
}
}
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JavaScript
JavaScript is a multi-paradigm language that supports event-driven, functional, and mandatory (including object-oriented and prototype-based) programming types. Originally JavaScript was only used on the client side. JavaScript is now still used as a server-side programming language. To summarize, we can say that JavaScript is the language of the Internet.
https://www.javascript.com/
JQuery
JQuery is arguably the most popular JavaScript library with so many features for modern development. JQuery is a fast and concise JavaScript library created by John Resig in 2006. It is a cross-platform JavaScript library designed to simplify client-side HTML scripting. Over 19 million websites are currently using jQuery! Companies like WordPress, Facebook, Google, IBM and many more rely on jQuery to provide a kind of web browsing experience.
https://jquery.com/
CSS
CSS (Cascading Style Sheets) is a formal language for describing the appearance of a document written using a markup language.
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