JavaScript - jQuery - Ajax


  1. » PloMar
    Let say I have this html:
    <div id= parent >
    <div id= c1 >Content child 1</div>
    <p id= c2 >Paragraph ...
    <span>some...
    Last post » Admin
    Try with the > selector, it refers to the direct childen.
    1. Example get array with the ID of all direct children.
    <div id= parent >...


  2. » PloMar
    How can I use JavaScript /jQuery to follow the mouse cursor with a DIV in the whole page?
    Last post » Admin
    If you want this effect with pure JavaScript, you can use this code:
    <style>
    #div_moving {
    position: absolute;
    width: 140px;
    height: 65px...


  3. » PloMar
    I'm playing with jQuery. Now I test the trigger() method.
    I try to trigger a custom method and pass two additional arguments (an object and a...
    Last post » Admin
    When you pass multiple arguments with trigger(), and those arguments aren't a number or a string, you should pass all the additional arguments into...


  4. » PloMar
    I have a Select box and options with IDs of the rows from a MySQL table.
    In that form there are 3 text fields.
    Now, when I select an option from...
    Last post » Admin
    To make that script you need to know how to work with JavaScript /Ajax and with data in JSON format.
    1. Register an onchange event to the Select-box...


  5. » PloMar
    I have an object like this in javascript:
    var obj = {
    prop1: 'val 1',
    prop2: 'val 2',
    prop3: 'val 3'
    };
    What is the best way to retrieve a list...
    Last post » Admin
    You can use the built in Object.keys method:
    var obj = {
    prop1: 'val 1',
    prop2: 'val 2',
    prop3: 'val 3'
    };

    var props = Object.keys(obj);...


  6. » PloMar
    I have an object like this in javascript:
    var obj = {
    prop1: 'val 1',
    prop2: 'val 2',
    prop3: 'val 3'
    };
    What is the best way to remove the...
    Last post » Admin
    To remove a property from a javascript object, you can use the delete instruction.
    Example:
    var obj = {
    prop1: 'val 1',
    prop2: 'val 2',
    prop3:...


  7. » MarPlo
    I have a html table and a button, like this:
    <table id= tb_id border= 1 >
    <tr>
    <th>Website</th>...
    Last post » Admin
    To append a row in a html table, use this syntax:
    $('#table_id > tbody:last').append('<tr>...</tr>');
    And to hide the pressed...


  8. » MarPlo
    I'm trying to dynamically add and remove items with jQuery when I press the Append /Remove buttons.
    This is the html code:
    <ul id= lists >...
    Last post » Admin
    Use the append() and remove() jquery methods, like in this example:
    <ul id= lists >
    <li>List Item 0</li>
    </ul>
    <button...


  9. » MarPlo
    I need to serialize an object to JSON in JavaScript. Is there a standard way to do this?
    I have an array defined something like this:
    var countries...
    Last post » Admin
    Use the JSON object methods.
    - To convert an object to a string, use JSON.stringify() :
    var json_string = JSON.stringify(your_object, null, 2);
    -...


  10. » MarPlo
    I want to do something like this:
    $( .chkox ).checked(true);
    Or:
    $( .chkox ).selected(false);
    I wish to set the checked value to check or uncheck...
    Last post » Admin
    Use the prop() method.
    $('.chkbox').prop('checked', true); // checking
    $('.chkox').prop('checked', false); // unchecking
    And if you want to check...


  11. » MarPlo
    Is it posible to run a php function through a javascript function?
    Something like this:
    <div id= php_code >Here will be added the Php Code...
    Last post » Admin
    PHP is evaluated at the server; javascript is evaluated at the client-side/browser, thus you can't call a PHP function from javascript directly. But...


  12. » MarPlo
    Is there any way I can modify the URL of the current page without reloading the page?
    I only need to change the portion after the domain, when a...
    Last post » Admin
    You can use the history.pushState() method to change the url address without refreshing the page.
    It works in modern browsers which suport HTML5....


  13. » MarPlo
    I have written a code that adds a text in canvas on clicking a button.
    And i want to display this text for lets say 2 seconds. How can I make the...
    Last post » Admin
    You have to use setTimeout() to call a function, after a given time, that clears the canvas content.
    Here's a simple demo for writing and clearing...


  14. » MarPlo
    Hi all,
    How can I set the canvas dimensions (width and height) according to window's size, using JavaScript?
    And, if it's possible, to change...
    Last post » Admin
    With self.innerWidth and self.innerHeight you can get the window's width and height. Then, with resize event you can detect when the window is...


  15. » MarPlo
    I have two DIVs that I need to know the calculated browser distance (in width and height) of them.
    Example html:
    <div id= dv1 >div...
    Last post » Admin
    Use the offset() function.
    Something like this should work:
    <div id= dv1 >div 1</div>
    Some text ...<br>

    <div id= dv2 >div...


  16. » MarPlo
    I have an array of integers:
    var array = ;
    Is there a simple way to remove a specific element from an array? The equivalent of something like:...
    Last post » Admin
    Use the indexOf() to find the index of the element you want to remove, then apply splice() to remove it:
    var array = ;
    var index =...


  17. » Marius
    I am using a jQuery script that adds dynamically a Div in the DOM. I am trying to ad onclick event for this div.
    HTML:
    <div class= ui23...
    Last post » Admin
    The live() method for registering events in jQuery is deprecated. Use instead the on() method.
    This is called event delegation ....


  18. » Marius
    Hi there,
    I would like a little advice for a proper way to animate with JavaScript, without using jQuery or other framework, just with pure...
    Last post » Admin
    Hello,
    The JavaScript has a function for animating objects, called requestAnimationFrame() that works in modern browsers (IE 10+)....


  19. » Marius
    Hi,
    Does anyone know how to add option in web page to change the css theme?
    For example, i have two css files: light.css , and dark.css . I want to...
    Last post » Admin
    Welcome
    It can be made with html and javascript:
    - Add an id to the html <link> tag which loads the css file.
    - Create a <select> with...


  20. » Marius
    How to focus on particular part of a web page by using javascript events?
    Let's say I clicked a button and it will scroll down or scroll up to a...
    Last post » MarPlo
    Hi,
    To scroll to a specified element, use the element.scrollIntoView() method (this method scrolls the current element into the visible area of the...


  21. » Marius
    How can I dynamically set /modify the values of certain form elements, more specifically certain input text fields? So far, whenever I load my html...
    Last post » MarPlo
    Hi,
    Add an ID to the input text field, for example:
    <form id= form1 >
    <input type= text name= q01 id= id_i1 maxlength= 1 />...


  22. » mowgli
    I see this is a very young forum, I came here looking solutions about Fotorama, anyway I had more answers here in few days that on the big...
    Last post » Admin
    Hi,
    That code not works because you have the thumbs in <img> tag, but in jQuery you refer to a ( $('.my-thumbnails a') ).
    Try change with:...


  23. » mowgli
    I really like and use Fotorama. In this site is posted a full and very good explanation of it. Thanks to the author! I downloaded and wanted to use...
    Last post » mowgli
    Wow, you're full right! After working on it for 6 hours I found the same solution and I came here to write it. Maybe if I came here before, I'd see...


  24. » Marius
    Hi,
    How can i st into a variable, for example an Array with two elements, the ID of the first and the last clicked Div which is into a parent DIV....
    Last post » Admin
    Hi,
    I think you can use this code.
    <div id= parent >
    <div id= id1 >
    <div id= id2 >
    <div id= id3 >
    <div id= id4...


  25. » Marius
    Hi,
    How can I set a variable with the id of the last hovered DIV or SPAN in page, using JavaScript /jQuery?
    I tryed with onmouseover event, but I...
    Last post » Admin
    Hi,
    Try this code.
    - Simple JavaScript:
    <div id= content >
    <span>
    <div id= id1 >
    <span id= id2 >
    <div id= id3...