Develop Reference

How to create a loop using jQuery

I want to execute the below code by creating a simple loop using jQuery, I can also change the classes if needed.
I want to shrink the code as much as possible.
$( ".btn1" ).click(function() {
$( this ).toggleClass( "act-btn1" );
});
$( ".btn2" ).click(function() {
$( this ).toggleClass( "act-btn2" );
});
$( ".btn3" ).click(function() {
$( this ).toggleClass( "act-btn3" );
});
$( ".btn4" ).click(function() {
$( this ).toggleClass( "act-btn4" );
});
$( ".btn5" ).click(function() {
$( this ).toggleClass( "act-btn5" );
});
$( ".btn6" ).click(function() {
$( this ).toggleClass( "act-btn6" );
});
$( ".btn7" ).click(function() {
$( this ).toggleClass( "act-btn7" );
});
$( ".btn8" ).click(function() {
$( this ).toggleClass( "act-btn8" );
});
$( ".btn9" ).click(function() {
$( this ).toggleClass( "act-btn9" );
});
$( ".btn10" ).click(function() {
$( this ).toggleClass( "act-btn10" );
});
$( ".btn11" ).click(function() {
$( this ).toggleClass( "act-btn11" );
});
$( ".btn12" ).click(function() {
$( this ).toggleClass( "act-btn12" );
});

for (let i = 0; i <= 12; i++) {
$( ".btn" + i ).click(function() {
$( this ).toggleClass( "act-btn" + i );
});
}

I don't know about your logic, And number of elements is dynamic or static. Anyway using simple loop like below may solve your problem.
for(let i = 1; i < 13; i++) {
$(`.btn${i}`).click(function() {
$(this).toggleClass(`act-btn${i}`);
});
}

The best way to do this would be to make a general class like .button and add it to every button, thun also make a general action class .btn-action, it would look somthing like this:
$('.button').on('click', function(){
$(this).toggleClass('btn-action');
})

Slick slider function inside change function doesn't work

I have built a product page that has a colour variation select. I'm trying to make it work that when a user selects a colour from the dropdown the slick slider will go to the corresponding slide.
I have added data-attr to each slick slide that contain the colour name and use this to the slide index.
The slickgoto function works when I move it outside of the change function.
$( "#pa_colour" ).change( function() {
var prod_color = $( "#pa_colour option:selected" ).val();
var slide_index = parseInt( $( ".slider-for" ).find('[data-color="' + prod_color + '"]').data("slick-index") ) -1;
$( ".slider-for" ).slick( 'slickGoTo', slide_index, false);
});
Thanks

No sure the false is necessary. Have you tried:
$('.slide-for').slick('slickGoTo', slide_index);
Otherwise I would adjust it to:
var slideshow = $( ".slider-for" );
slideshow.slick({ ... });
$( "#pa_colour" ).change( function() {
var prod_color = $( "#pa_colour option:selected" ).val();
var slide_index = parseInt( $( ".slider-for" ).find('[data-color="' + prod_color + '"]').data("slick-index") ) -1;
slideshow.slick( 'slickGoTo', slide_index );
});
Hope this helps.

How do I make elements in jQuery Selectable deselected?

How do I make elements in jQuery Selectable deselected? At this Link it is well documented how to use jQuery Selectable but it is never mentioned how to deselect selected elements again. Any ideas?
<script>
$(function() {
$( "#selectable" ).selectable({
stop: function() {
var result = $( "#select-result" ).empty();
$( ".ui-selected", this ).each(function() {
var index = $( "#selectable li" ).index( this );
result.append( " #" + ( index + 1 ) );
});
}
});
});
</script>
<ol id="selectable">
<?php
for($i=1;$i<=9;$i++) {
echo "<li id=\"field_$i\" class=\"ui-state-default\">$i</li>";
}
?>
</ol>

Hold ctrl and click on the elements. It can also be used to make multiple selections.

Selectable Serialize jQuery UI:: How to display the content within the html tag instead of the index value?

I'm very new beginner to jquery and I'm using the 'Selectable, Serialize' interaction from jQuery UI.
The interaction shows the index value that the user has selected, but I would like to know how to instead of displaying the index value, display the content that the user has selected.
so actually its like this
SCRIPT::
$( "#selectable" ).selectable({
stop: function() {
var result = $( "#select-result" ).empty();
$( ".ui-selected", this ).each(function() {
var index = $( "#selectable li" ).index( this );
result.append( " #" + ( index + 1 ) );
});
}
});
HTML::
<ol id="selectable">
<li class="ui-widget-content">Watermelon</li>
<li class="ui-widget-content">Orange</li>
<li class="ui-widget-content">Guava</li>
<li class="ui-widget-content">Apple</li>
<li class="ui-widget-content">Banana</li>
</ol>
The result shown is "You've selected: #1."
But I would like the result to be displayed as "You've selected: Watermelon"
Thanks in advance. :)

$( "#selectable" ).selectable({
stop: function() {
var result = $( "#select-result" ).empty();
$( ".ui-selected", this ).each(function() {
var index = $( "#selectable li" ).index( this );
//this is set by jQuery to be the current item in the each iteration
//so wrap this in the $.jQuery object and then you will be able to call the jQuery method
//text() to get the text value
result.append( " " + $(this).text());
});
}
});

jQuery Drag and Drop not working

I am trying to develop a simple drag and drop 'game'. In simple terms all you do is drag and drop various items into a area and it will say correct or wrong depending on the item dragged. This is what I have so far and its not working at all and I dont know why. My knowledge of JS and jQuery leaves a lot to be desired too.
<script>
$(function() {
$( "#draggable" ).draggable();
$( "#wrong" ).draggable();
$( "#droppable" ).droppable({
drop: function( event, ui ) {
var currentId = $(this).attr('id');
if (currentId == "draggable") {
$( this )
.addClass( "highlight" )
.find( "p" )
.html( "Correct! :)" );
} else {
$( this )
.find( "p" )
.html( "Wrong! :(" );
}
}
});
});
</script>
Now that I have it working I need more instances of the draggable images but when I add more the the new ones that have been added don't work.
http://jsfiddle.net/KcruJ/9/

var currentId = $(this).attr('id');
if (currentId == "draggable")
...
Will never result true, as $(this) represents the droppable the draggable is dropped on. ui.draggable represents the draggable[1]
Try:
var currentId = $(ui.draggable).attr('id');
if (currentId == "draggable")
...

This works: http://jsfiddle.net/T6nu3/2/
$(this).attr('id');
Will always return droppable.
You need to access the dragged element:
$(ui.draggable).attr('id');
Take a look at the jQuery UI Documentation for more information.
Code:
$(function() {
$("#draggable").draggable();
$("#wrong").draggable();
$("#droppable").droppable({
drop: function(event, ui) {
var currentId = $(ui.draggable).attr('id');
if (currentId == "draggable") {
$(this).addClass("highlight").find("p").html("Correct! :)");
} else {
$(this).find("p").html("Wrong! :(");
}
}
});
});

haha well, Alex seems to have this one on lock.
There's the answer: http://jsfiddle.net/aGqHh/1/