Reputation: 23
I have a problem with the script below, in a way that if "product color" is changed (selected) more than once, the first preselected / filtered item in fruit dropdown is actually the last one from previous array list and it should be the first one on that list.
How can I force it to be always first value?
Example is below:
$(function() {
var $product = $('[name="filter-product"]');
var $fruits = $('[name="filter-fruits"]');
var $fruitsList = $fruits.find('option').clone();
var fruit = {
"Green": ["All", "Fruit 1", "Fruit 3", "Fruit 5"],
"Yellow": ["All", "Fruit 1", "Fruit 3", "Fruit 4", "Fruit 5"]
}
$product.change(function() {
var $selectedProduct = $(this).find('option:selected').text();
$fruits.html($fruitsList.filter(function() {
return $.inArray($(this).text(), fruit[$selectedProduct]) >= 0;
}));
});
});
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<h4>Color</h4>
<select name="filter-product">
<option value="All">All</option>
<option value="yellow">Yellow</option>
<option value="green">Green</option>
</select>
<h4>Fruit</h4>
<select name="filter-fruits">
<option value="All">All</option>
<option value="fruit1">Fruit 1</option>
<option value="fruit2">Fruit 2</option>
<option value="fruit3">Fruit 3</option>
<option value="fruit4">Fruit 4</option>
<option value="fruit5">Fruit 5</option>
</select>
Upvotes: 2
Views: 264
Reputation: 1195
$(function() {
var $product = $('[name="filter-product"]');
var $fruits = $('[name="filter-fruits"]');
var fruit = {
"Green": ["All", "Fruit 1", "Fruit 3", "Fruit 5"],
"Yellow": ["All", "Fruit 1", "Fruit 3", "Fruit 4", "Fruit 5"]
}
$product.change(function() {
//moving this clone function inside onclick can help;
var $fruitsList = $fruits.find('option').clone();
var $selectedProduct = $(this).find('option:selected').text();
$fruits.html($fruitsList.filter(function() {
return $.inArray($(this).text(), fruit[$selectedProduct]) >= 0;
}));
});
});
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<h4>Color</h4>
<select name="filter-product">
<option value="All">All</option>
<option value="yellow">Yellow</option>
<option value="green">Green</option>
</select>
<h4>Fruit</h4>
<select name="filter-fruits">
<option value="All">All</option>
<option value="fruit1">Fruit 1</option>
<option value="fruit2">Fruit 2</option>
<option value="fruit3">Fruit 3</option>
<option value="fruit4">Fruit 4</option>
<option value="fruit5">Fruit 5</option>
</select>
Upvotes: 0
Reputation: 1049
$(function() {
var $product = $('[name="filter-product"]');
var $fruits = $('[name="filter-fruits"]');
var $fruitsList = $fruits.find('option').clone();
var fruit = {
"Green": ["All", "Fruit 1", "Fruit 3", "Fruit 5"],
"Yellow": ["All", "Fruit 1", "Fruit 3", "Fruit 4", "Fruit 5"]
}
$product.change(function() {
var $selectedProduct = $(this).find('option:selected').text();
$fruits.html($fruitsList.filter(function() {
return $.inArray($(this).text(), fruit[$selectedProduct]) >= 0;
}));
$fruits[0].selectedIndex = 0;
});
});
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<h4>Color</h4>
<select name="filter-product">
<option value="All">All</option>
<option value="yellow">Yellow</option>
<option value="green">Green</option>
</select>
<h4>Fruit</h4>
<select name="filter-fruits">
<option value="All">All</option>
<option value="fruit1">Fruit 1</option>
<option value="fruit2">Fruit 2</option>
<option value="fruit3">Fruit 3</option>
<option value="fruit4">Fruit 4</option>
<option value="fruit5">Fruit 5</option>
</select>
Upvotes: 0
Reputation: 337743
To do this you can manually set the selectedIndex
of the select back to 0
after updating the option
elements, like this:
$(function() {
var $product = $('[name="filter-product"]');
var $fruits = $('[name="filter-fruits"]');
var $fruitsList = $fruits.find('option').clone();
var fruit = {
"Green": ["All", "Fruit 1", "Fruit 3", "Fruit 5"],
"Yellow": ["All", "Fruit 1", "Fruit 3", "Fruit 4", "Fruit 5"]
}
$product.change(function() {
var $selectedProduct = $(this).find('option:selected').text();
$fruits.html($fruitsList.filter(function() {
return $.inArray($(this).text(), fruit[$selectedProduct]) >= 0;
}));
$fruits[0].selectedIndex = 0; // select the first option
});
});
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<h4>Color</h4>
<select name="filter-product">
<option value="All">All</option>
<option value="yellow">Yellow</option>
<option value="green">Green</option>
</select>
<h4>Fruit</h4>
<select name="filter-fruits">
<option value="All">All</option>
<option value="fruit1">Fruit 1</option>
<option value="fruit2">Fruit 2</option>
<option value="fruit3">Fruit 3</option>
<option value="fruit4">Fruit 4</option>
<option value="fruit5">Fruit 5</option>
</select>
Upvotes: 2