Change the content of a div based on selection from dropdown menu

Is there a simple way, using JavaScript, to dynamically show/hide content in a <div> based on the users selection from a drop down menu? For example, if a user selects option 1 then I would like <div> 1 to be displayed and all other <div>s to be hidden.

EDIT: Example HTML Setup

<select>
<option> Option 1</option>
<option> Option 2</option>
<option> Option 3</option>
<select>

<div id="content_1" style="display:hidden;">Content 1<div>
<div id="content_2" style="display:hidden;">Content 2<div>
<div id="content_3" style="display:hidden;">Content 3<div>

Solution 1:

The accepted answer has a couple of shortcomings:

Don't target IDs in your JavaScript code. Use classes and data attributes to avoid repeating your code.
It is good practice to hide with CSS on load rather than with JavaScript—to support non-JavaScript users, and prevent a show-hide flicker on load.

Considering the above, your options could even have different values, but toggle the same class:

<select class="div-toggle" data-target=".my-info-1">
  <option value="orange" data-show=".citrus">Orange</option>
  <option value="lemon" data-show=".citrus">Lemon</option>
  <option value="apple" data-show=".pome">Apple</option>
  <option value="pear" data-show=".pome">Pear</option>
</select>

<div class="my-info-1">
  <div class="citrus hide">Citrus is...</div>
  <div class="pome hide">A pome is...</div>
</div>

jQuery:

$(document).on('change', '.div-toggle', function() {
  var target = $(this).data('target');
  var show = $("option:selected", this).data('show');
  $(target).children().addClass('hide');
  $(show).removeClass('hide');
});
$(document).ready(function(){
    $('.div-toggle').trigger('change');
});

CSS:

.hide {
  display: none;
}

Here's a JSFiddle to see it in action.

Solution 2:

here is a jsfiddle with an example of showing/hiding div's via a select.

HTML:

<div id="option1" class="group">asdf</div>
<div id="option2" class="group">kljh</div>
<div id="option3" class="group">zxcv</div>
<div id="option4" class="group">qwerty</div>
<select id="selectMe">
  <option value="option1">option1</option>
  <option value="option2">option2</option>
  <option value="option3">option3</option>
  <option value="option4">option4</option>
</select>

jQuery:

$(document).ready(function () {
  $('.group').hide();
  $('#option1').show();
  $('#selectMe').change(function () {
    $('.group').hide();
    $('#'+$(this).val()).show();
  })
});

Solution 3:

With zero jQuery

<!DOCTYPE html>
<html>
    <head>
        <title></title>
    </head>
    <style>
.inv {
    display: none;
}
    </style>
    <body>
        <select id="target">
            <option value="">Select...</option>
            <option value="content_1">Option 1</option>
            <option value="content_2">Option 2</option>
            <option value="content_3">Option 3</option>
        <select>

        <div id="content_1" class="inv">Content 1</div>
        <div id="content_2" class="inv">Content 2</div>
        <div id="content_3" class="inv">Content 3</div>
        
        <script>
            document
                .getElementById('target')
                .addEventListener('change', function () {
                    'use strict';
                    var vis = document.querySelector('.vis'),   
                        target = document.getElementById(this.value);
                    if (vis !== null) {
                        vis.className = 'inv';
                    }
                    if (target !== null ) {
                        target.className = 'vis';
                    }
            });
        </script>
    </body>
</html>

Codepen

document
  .getElementById('target')
  .addEventListener('change', function () {
    'use strict';
    var vis = document.querySelector('.vis'),   
      target = document.getElementById(this.value);
    if (vis !== null) {
      vis.className = 'inv';
    }
    if (target !== null ) {
      target.className = 'vis';
    }
});

.inv {
    display: none;
}

<!DOCTYPE html>
<html>
    <head>
    <meta charset="utf-8"/>
        <title></title>
    </head>
    <body>
        <select id="target">
            <option value="">Select...</option>
            <option value="content_1">Option 1</option>
            <option value="content_2">Option 2</option>
            <option value="content_3">Option 3</option>
        <select>

        <div id="content_1" class="inv">Content 1</div>
        <div id="content_2" class="inv">Content 2</div>
        <div id="content_3" class="inv">Content 3</div>
    </body>
</html>

Solution 4:

Meh too slow. Here's my example anyway :)
http://jsfiddle.net/cqDES/

$(function() {
    $('select').change(function() {
        var val = $(this).val();
        if (val) {
            $('div:not(#div' + val + ')').slideUp();
            $('#div' + val).slideDown();
        } else {
            $('div').slideDown();
        }
    });
});

Solution 5:

I am not a coder, but you could save a few lines:

<div>
            <select onchange="if(selectedIndex!=0)document.getElementById('less_is_more').innerHTML=options[selectedIndex].value;">
                <option value="">hire me for real estate</option>
                <option value="me!!!">Who is a good Broker? </option>
                <option value="yes!!!">Can I buy a house with no down payment</option>
                <option value="send me a note!">Get my contact info?</option>
            </select>
        </div>

<div id="less_is_more"></div>

Here is demo.