Develop Reference

How to set checked radio button using name and attr in jquery?

I am working with some radio input and want to set them checked while edit function. I used ajax response. I have to set them checked.
The code sample is following:
<form>
Group 1:
<input type="radio" name="ans1" str="ans_a" value="1" />
<input type="radio" name="ans1" str="ans_b" value="2" />
<input type="radio" name="ans1" str="ans_c" value="3" />
<input type="radio" name="ans1" str="ans_d" value="4" />
Group 2:
<input type="radio" name="ans2" str="ans_a" value="1" />
<input type="radio" name="ans2" str="ans_b" value="2" />
<input type="radio" name="ans2" str="ans_c" value="3" />
<input type="radio" name="ans2" str="ans_d" value="4" />
Group 3:
<input type="radio" name="ans3" str="ans_a" value="1" />
<input type="radio" name="ans3" str="ans_b" value="2" />
<input type="radio" name="ans3" str="ans_c" value="3" />
<input type="radio" name="ans3" str="ans_d" value="4" />
</form>
I get from ajax response the following:
var ans_name = ans1,ans2,ans3;
var str = ans_c,ans_a,ans_d;
That means i have to set checked the 3rd radio input of gruop 1 and so on.
How can i set checked the corresponding radio button by jquery?

Select based on attribute equals selector and update the checked property.
var ans_name = 'ans1,ans2,ans3';
var str = 'ans_c,ans_a,ans_d';
// split the string into array by ,
var names = ans_name.split(','),
val = str.split(',');
// iterate over names array
names.forEach(function(v, i) {
// generate the selector and get jQuery object using that
$('[name="' + v + '"][str="' + val[i] + '"]')
// update the property
.prop('checked', true);
})
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<form>
Group 1:
<input type="radio" name="ans1" str="ans_a" value="1" />
<input type="radio" name="ans1" str="ans_b" value="2" />
<input type="radio" name="ans1" str="ans_c" value="3" />
<input type="radio" name="ans1" str="ans_d" value="4" /> Group 2:
<input type="radio" name="ans2" str="ans_a" value="1" />
<input type="radio" name="ans2" str="ans_b" value="2" />
<input type="radio" name="ans2" str="ans_c" value="3" />
<input type="radio" name="ans2" str="ans_d" value="4" /> Group 3:
<input type="radio" name="ans3" str="ans_a" value="1" />
<input type="radio" name="ans3" str="ans_b" value="2" />
<input type="radio" name="ans3" str="ans_c" value="3" />
<input type="radio" name="ans3" str="ans_d" value="4" />
</form>
Or generate a single selector using Array#map and Array#join methods.
var ans_name = 'ans1,ans2,ans3';
var str = 'ans_c,ans_a,ans_d';
var names = ans_name.split(','),
val = str.split(',');
$(names.map(function(v, i) {
// geneate the selector
return '[name="' + v + '"][str="' + val[i] + '"]';
})
// join the selectors
.join(','))
// update the property
.prop('checked', true)
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<form>
Group 1:
<input type="radio" name="ans1" str="ans_a" value="1" />
<input type="radio" name="ans1" str="ans_b" value="2" />
<input type="radio" name="ans1" str="ans_c" value="3" />
<input type="radio" name="ans1" str="ans_d" value="4" /> Group 2:
<input type="radio" name="ans2" str="ans_a" value="1" />
<input type="radio" name="ans2" str="ans_b" value="2" />
<input type="radio" name="ans2" str="ans_c" value="3" />
<input type="radio" name="ans2" str="ans_d" value="4" /> Group 3:
<input type="radio" name="ans3" str="ans_a" value="1" />
<input type="radio" name="ans3" str="ans_b" value="2" />
<input type="radio" name="ans3" str="ans_c" value="3" />
<input type="radio" name="ans3" str="ans_d" value="4" />
</form>

Explode names and value with data what you get from response and check through loop and you will get radio checked with the correct answer.
var ans_name = "ans1,ans2,ans3";
var str = "ans_c,ans_a,ans_d";
var checkbox_names = ans_name.split(",");
var values = str.split(",");
$(checkbox_names).each(function(index, value){
$("[name='"+value+"'][str='"+values[index]+"']").prop("checked",true);
});
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.9.1/jquery.min.js"></script>
<form>
Group 1:
<input type="radio" name="ans1" str="ans_a" value="1" />
<input type="radio" name="ans1" str="ans_b" value="2" />
<input type="radio" name="ans1" str="ans_c" value="3" />
<input type="radio" name="ans1" str="ans_d" value="4" />
Group 2:
<input type="radio" name="ans2" str="ans_a" value="1" />
<input type="radio" name="ans2" str="ans_b" value="2" />
<input type="radio" name="ans2" str="ans_c" value="3" />
<input type="radio" name="ans2" str="ans_d" value="4" />
Group 3:
<input type="radio" name="ans3" str="ans_a" value="1" />
<input type="radio" name="ans3" str="ans_b" value="2" />
<input type="radio" name="ans3" str="ans_c" value="3" />
<input type="radio" name="ans3" str="ans_d" value="4" />

How to differentiate the names of each group of radio buttons?

I'm using formvalidation.io plugin to do the validation. By default, it validates the name of the radio buttons. But I can not do it that way. I need to know somehow / logic to differentiate each name of each radio buttons group.
Can someone help me?
EXAMPLE:
<div>
<div id="perguntas">
<label>1 - Pergunta 1</label>
<input type="hidden" name="pergunta[]" value="$pergunta->id" />
<div id="respostas">
<input type="radio" name="resposta[$pergunta->id]" value="1" /> Male
<input type="radio" name="resposta[$pergunta->id]" value="2" /> Female
<input type="radio" name="resposta[$pergunta->id]" value="3" /> Other
</div>
<div>
<textarea name="mensagem[$pergunta->id]" rows="3" />
</div>
</div>
<div id="perguntas">
<label>2 - Pergunta 2</label>
<input type="hidden" name="pergunta[]" value="$pergunta->id" />
<div id="respostas">
<input type="radio" name="resposta[$pergunta->id]" value="1" /> Male
<input type="radio" name="resposta[$pergunta->id]" value="2" /> Female
<input type="radio" name="resposta[$pergunta->id]" value="3" /> Other
</div>
<div>
<textarea name="mensagem[$pergunta->id]" rows="3" />
</div>
</div>
<div id="perguntas">
<label>3 - Pergunta ...</label>
<input type="hidden" name="pergunta[]" value="$pergunta->id" />
<div id="respostas">
<input type="radio" name="resposta[$pergunta->id]" value="1" /> Male
<input type="radio" name="resposta[$pergunta->id]" value="2" /> Female
<input type="radio" name="resposta[$pergunta->id]" value="3" /> Other
</div>
<div>
<textarea name="mensagem[$pergunta->id]" rows="3" />
</div>
</div>
<div id="perguntas">
<label>16 - Pergunta 16</label>
<input type="hidden" name="pergunta[]" value="$pergunta->id" />
<div id="respostas">
<input type="radio" name="resposta[$pergunta->id]" value="1" /> Male
<input type="radio" name="resposta[$pergunta->id]" value="2" /> Female
<input type="radio" name="resposta[$pergunta->id]" value="3" /> Other
</div>
<div>
<textarea name="mensagem[$pergunta->id]" rows="3" />
</div>
</div>
</div>

How do I set a group of checkboxes using values?

So I have a group of checkboxes, for example:
<input type="checkbox" id="cbl1" name="cbl" value="1" />
<input type="checkbox" id="cbl2" name="cbl" value="2" />
<input type="checkbox" id="cbl3" name="cbl" value="3" />
<input type="checkbox" id="cbl4" name="cbl" value="4" />
<input type="checkbox" id="cbl5" name="cbl" value="5" />
<input type="checkbox" id="cbl6" name="cbl" value="6" />
<input type="checkbox" id="cbl7" name="cbl" value="7" />
<input type="checkbox" id="cbl8" name="cbl" value="8" />
Now I have an array of values:
var values = ["2", "4", "7", "8"];
Now how do I end up with my group of checkboxes to look like this:
<input type="checkbox" id="cbl1" name="cbl" value="1" />
<input type="checkbox" id="cbl2" name="cbl" value="2" checked="checked" />
<input type="checkbox" id="cbl3" name="cbl" value="3" />
<input type="checkbox" id="cbl4" name="cbl" value="4" checked="checked" />
<input type="checkbox" id="cbl5" name="cbl" value="5" />
<input type="checkbox" id="cbl6" name="cbl" value="6" />
<input type="checkbox" id="cbl7" name="cbl" value="7" checked="checked" />
<input type="checkbox" id="cbl8" name="cbl" value="8" checked="checked" />
Will I have to use two for-loops to do this? Is there a way in plain javascript or jquery that doesn't involve having to loop twice?

API docs demo
var values = ["2", "4", "7", "8"];
$('input[name="cbl"]').val(values)
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<input type="checkbox" id="cbl1" name="cbl" value="1" />
<input type="checkbox" id="cbl2" name="cbl" value="2" />
<input type="checkbox" id="cbl3" name="cbl" value="3" />
<input type="checkbox" id="cbl4" name="cbl" value="4" />
<input type="checkbox" id="cbl5" name="cbl" value="5" />
<input type="checkbox" id="cbl6" name="cbl" value="6" />
<input type="checkbox" id="cbl7" name="cbl" value="7" />
<input type="checkbox" id="cbl8" name="cbl" value="8" />

Create a selector from the array, and check them all
$( '#cbl' + values.join(', #cbl') ).prop('checked', true);
FIDDLE
This is using the ID's, as that's a better way to select the elements than the values, if you still want to use the values, you can use the same concept
$( '[value="' + values.join('"], [value="') + '"]').prop('checked', true);
FIDDLE
or you can filter
$('input[type="checkbox"]').filter(function() {
return $.inArray(this.value, values) != -1;
}).prop('checked', true);

JavaScript to create a global radio button for all subsequent radio buttons?

I have this set of labels and radio buttons that look like this:
Entertainment: <input type="radio" name="entertainment" id="entertainment" value="0" checked/>
<input type="radio" name="entertainment" id="entertainment" value="1" />
<input type="radio" name="entertainment" id="entertainment" value="2" /><br />
Radio: <input type="radio" name="radio" id="radio" value="0" checked/>
<input type="radio" name="radio" id="radio" value="1" />
<input type="radio" name="radio" id="radio" value="2" /><br />
Dancing: <input type="radio" name="dancing" id="dancing" value="0" checked/>
<input type="radio" name="dancing" id="dancing" value="1" />
<input type="radio" name="dancing" id="dancing" value="2" /><br />
Music: <input type="radio" name="music" id="music" value="0" checked/>
<input type="radio" name="music" id="music" value="1" />
<input type="radio" name="music" id="music" value="2" /><br />
Television: <input type="radio" name="tv" id="tv" value="0" checked/>
<input type="radio" name="tv" id="tv" value="1" />
<input type="radio" name="tv" id="tv" value="2" /><br />
Film: <input type="radio" name="film" id="film" value="0" checked/>
<input type="radio" name="film" id="film" value="1" />
<input type="radio" name="film" id="film" value="2" /><br />
Theatre: <input type="radio" name="theatre" id="theatre" value="0" checked/>
<input type="radio" name="theatre" id="theatre" value="1" />
<input type="radio" name="theatre" id="theatre" value="2" />
The idea is that the three 'Entertainment' radio buttons at the top control all the radio buttons below. A 'global switch', if you will, to save people time. Does anyone know the necessary JavaScript/jQuery to accomplish this? I can't find a correct example online.

$(':radio[name=entertainment]').change(function() {
$(this).nextAll(':radio[value="'+ this.value +'"]').prop('checked', true);
$(this).nextAll(':radio[value!="'+ this.value +'"]').prop('checked', false);
});
Working sample
Note
ids should be unique.

Traverse object and return matching key / values

I have a series of objects containing product information that I need to use to filter the available product options. (i.e. Customer selects radio button with value option id 25, I need to filter the other two options based on what's available for id 25 and then get the value for that three part combination from configurations (25 / 1 / 13) and find that combination in siblings to return the sku value (25 / 1/ 13 = 1761).
I've been successful at getting the keys and values but not matching. I'm a total n00b with javascript (most of my experience is just animating things with jQuery) so I'm not sure that I have written anything worthwhile so far.
Here's what I get from the encoded JSON (trimmed b/c data is massive so formatting might not be exact). I don't have any control over formatting and structure of the JSON.
var configurations = {
"lens_types":{
"25":{
"1":1,
"2":2,
"4":4,
"3":3}},
"lenses":{
"25":{
"1":{
"2":2,
"4":4,
"5":5,
"6":6,
"9":9,
"13":13},
"2":{
"4":4,
"5":5,
"6":6,
"13":13}}}
var siblings = {
"25":{
"1":{
"2":1744,
"4":1745,
"5":1747},
"6":1749,
"9":1752,
"13":1761},
"2":{
"4":1746,
"5":1748,
"6":1750,
"13":1762},
"4":{
"1":1753,
"3":1756,
"8":1759},
"3":{
"2":1754,
"3":1755,
"8":1757,
"9":1758,
"12":1760}}}
This is the generic structure of the product form:
<form method="post" action="" name="product_details">
<div id="frame_style">
<input type="radio" name="frame_style" value="1" />
<input type="radio" name="frame_style" value="3" />
<input type="radio" name="frame_style" value="11" />
<input type="radio" name="frame_style" value="24" />
<input type="radio" name="frame_style" value="25" />
<input type="radio" name="frame_style" value="27" />
<input type="radio" name="frame_style" value="2" />
<input type="radio" name="frame_style" value="8" />
<input type="radio" name="frame_style" value="45" />
<input type="radio" name="frame_style" value="77" />
<input type="radio" name="frame_style" value="89" />
<input type="radio" name="frame_style" value="13" />
</div>
<div id="lens_type">
<input type="radio" name="lens_type" value="1" />
<input type="radio" name="lens_type" value="2" />
<input type="radio" name="lens_type" value="3" />
<input type="radio" name="lens_type" value="4" />
</div>
<div id="lens_style">
<input type="radio" name="lens_style" value="1" />
<input type="radio" name="lens_style" value="2" />
<input type="radio" name="lens_style" value="3" />
<input type="radio" name="lens_style" value="4" />
<input type="radio" name="lens_style" value="5" />
<input type="radio" name="lens_style" value="8" />
<input type="radio" name="lens_style" value="9" />
<input type="radio" name="lens_style" value="12" />
</div>
</form>
Any ideas? Thanks!!
Edit
Here's the full object for both:
var configurations = {"lens_types":{"25":{"1":1,"2":2,"4":4,"3":3},"1":{"1":1,"2":2,"4":4,"3":3},"15":{"1":1,"2":2,"3":3},"26":{"1":1,"2":2,"3":3},"24":{"1":1,"2":2,"4":4,"3":3},"27":{"1":1,"2":2,"4":4,"3":3},"11":{"1":1,"2":2,"4":4,"3":3},"3":{"1":1,"2":2,"4":4,"3":3}}, "lenses":{"25":{"1":{"2":2,"4":4,"5":5,"6":6,"9":9,"13":13},"2":{"4":4,"5":5,"6":6,"13":13},"4":{"1":1,"3":3,"8":8},"3":{"2":2,"3":3,"8":8,"9":9,"12":12}},"1":{"1":{"2":2,"4":4,"5":5,"6":6,"9":9,"13":13},"2":{"4":4,"5":5,"6":6,"13":13},"4":{"1":1,"3":3,"8":8},"3":{"2":2,"3":3,"8":8,"9":9,"12":12}},"15":{"1":{"2":2,"4":4,"5":5,"6":6,"9":9,"13":13},"2":{"4":4,"5":5,"6":6,"13":13},"3":{"2":2,"3":3,"8":8,"9":9}},"26":{"1":{"2":2,"4":4,"5":5,"6":6,"9":9,"13":13},"2":{"4":4,"5":5,"6":6,"13":13},"3":{"2":2,"3":3,"8":8,"9":9}},"24":{"1":{"2":2,"4":4,"5":5,"6":6,"9":9,"13":13},"2":{"4":4,"5":5,"6":6,"13":13},"4":{"1":1,"3":3,"8":8},"3":{"2":2,"3":3,"8":8,"9":9,"12":12}},"27":{"1":{"2":2,"4":4,"5":5,"6":6,"9":9,"13":13},"2":{"4":4,"5":5,"6":6,"13":13},"4":{"1":1,"3":3,"8":8},"3":{"2":2,"3":3,"8":8,"9":9,"12":12}},"11":{"1":{"2":2,"4":4,"5":5,"6":6,"9":9,"13":13},"2":{"4":4,"5":5,"6":6,"13":13},"4":{"1":1,"3":3,"8":8},"3":{"2":2,"3":3,"8":8,"9":9,"12":12}},"3":{"1":{"2":2,"4":4,"5":5,"9":9},"2":{"4":4,"5":5,"6":6},"4":{"1":1,"3":3,"8":8},"3":{"2":2,"3":3,"8":8,"9":9,"12":12}}}}
var siblings = {"25":{"1":{"2":1744,"4":1745,"5":1747,"6":1749,"9":1752,"13":1761},"2":{"4":1746,"5":1748,"6":1750,"13":1762},"4":{"1":1753,"3":1756,"8":1759},"3":{"2":1754,"3":1755,"8":1757,"9":1758,"12":1760}},"1":{"1":{"2":1769,"4":1770,"5":1772,"6":1774,"9":1777,"13":1786},"2":{"4":1771,"5":1773,"6":1775,"13":1787},"4":{"1":1778,"3":1781,"8":1784},"3":{"2":1779,"3":1780,"8":1782,"9":1783,"12":1785}},"15":{"1":{"2":1794,"4":1795,"5":1797,"6":1799,"9":1802,"13":1807},"2":{"4":1796,"5":1798,"6":1800,"13":1808},"3":{"2":1803,"3":1804,"8":1805,"9":1806}},"26":{"1":{"2":1809,"4":1810,"5":1812,"6":1814,"9":1817,"13":1822},"2":{"4":1811,"5":1813,"6":1815,"13":1823},"3":{"2":1818,"3":1819,"8":1820,"9":1821}},"24":{"1":{"2":1824,"4":1825,"5":1827,"6":1829,"9":1832,"13":1841},"2":{"4":1826,"5":1828,"6":1830,"13":1842},"4":{"1":1833,"3":1836,"8":1839},"3":{"2":1834,"3":1835,"8":1837,"9":1838,"12":1840}},"27":{"1":{"2":1843,"4":1844,"5":1846,"6":1848,"9":1851,"13":1860},"2":{"4":1845,"5":1847,"6":1849,"13":1861},"4":{"1":1852,"3":1855,"8":1858},"3":{"2":1853,"3":1854,"8":1856,"9":1857,"12":1859}},"11":{"1":{"2":1862,"4":1863,"5":1865,"6":1867,"9":1870,"13":1879},"2":{"4":1864,"5":1866,"6":1868,"13":1880},"4":{"1":1871,"3":1874,"8":1877},"3":{"2":1872,"3":1873,"8":1875,"9":1876,"12":1878}},"3":{"1":{"2":1881,"4":1882,"5":1884,"9":1888},"2":{"4":1883,"5":1885,"6":1886},"4":{"1":1889,"3":1892,"8":1895},"3":{"2":1890,"3":1891,"8":1893,"9":1894,"12":1896}}}

You could do something like:
$('#frame_style input:radio').click(function(){
var val = $(this).val();
for ( var ind in configurations['lenses'][val]){
var input = '<input type="radio" name="lens_type" value="'+ind+'" >'+ind;
$('#lens_type').append(input);
}
});
$('#lens_type input:radio').live('click', function(){
var frame = $('#frame_style input:radio:checked').val();
var val = $(this).val();
for ( var ind in configurations['lenses'][frame][val]){
var input = '<input type="radio" name="lens_style" value="'+ind+'" >'+ind;
$('#lens_style').append(input);
}
});
$('#lens_style input:radio').live('click', function(){
var frame = $('#frame_style input:radio:checked').val();
var type = $('#lens_type input:radio:checked').val();
var style = $(this).val()
alert('Sku is:'+siblings[frame][type][style]);
});
the idea is to create the radios after the user select the first level. Of course this is very basic, you can try this fiddle: http://jsfiddle.net/LL3SM/ and choos 25, 1, 2 you will get an alert with the sku