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Efficient and Helpful JavaScript/jQuery Tips and Tricks  

Submit day 11/10/2010 You do not write comment in this script 1

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Efficient and Helpful JavaScript/jQuery Tips and Tricks This free HTML JavaScript tutorial provides 45+ JavaScript/jQuery tips and tricks that help you work in JavaScript tasks better, through live HTML JavaScript example codes. List of some JavaScript tips and tricks:

- Refreshing the src of an image with jQuery?
- Check if an image is loaded or not with jQuery
- Remove selected text after mouse double click JavaScript event
- Validate an email address
- Check if an HTML control element exists
- Cancel an AJAX request
- Select all HTML checkboxes
- Selecting root element of a certain level in the document
- Searching a string in jQuery

Please go to the full post page for full detailed tips and HTML JavaScript example codes, then try some JavaScript tutorials:

- 10 Small Javascript Tricks You Should Master
- Some Basic Tips and Tricks for Speeding Up JavaScript
- 10 jQuery and JavaScript Tips and Tricks to Improve Your Code
- 5 Good and Small JavaScript Tips and Tricks


Label: JavaScript event, HTML control, HTML JavaScript example code, 45

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  • Moving options from list A to list B
    • view sourceprint?
    1.$().ready(function() {
    2.    $('#add').click(function() {
    3.        !$('#select1 option:selected').appendTo('#select2');
    4.    });
    5.    $('#remove').click(function() {
    6.        !$('#select2 option:selected').appendTo('#select1');
    7.    });
    8.});
  • Select all checkboxes
    • view sourceprint?
    1.$(document).ready(function(){
    2.    $("#checkboxall").change(function(){
    3.        var checked_status = this.checked;
    4.        $("input[name=checkall]").attr("checked", checked_status);
    5.    });
    6. 
    7.});
  • Get the current URL
    • view sourceprint?
    1.$(document).ready(function() {
    2.    var pathname = window.location.pathname;
    3.});
  • Check if and which key was pressed
    • view sourceprint?
    01.$(function() {
    02.    $(document).keypress(function(e){
    03.        switch(e.which){
    04.        // "ENTER"
    05.        case 13:
    06.        alert('enter pressed');
    07.        break;
    08. 
    09.        // "s"
    10.        case 115:
    11.        alert('s pressed');
    12.        break;
    13. 
    14.        (...)
    15. 
    16.        }
    17.    });
    18. 
    19.});
  • How to hide all children div except a specific one with jQuery?
    • view sourceprint?
    1.$('#target div:not(#exclude)').hide();
    2.//or
    3.$('#target').children().filter(':not(#exclude)').hide();
  • Detecting when a div's height changes using jQuery
    • view sourceprint?
    1.$('element').bind('resize', function(){
    2.alert( 'Height changed to' + $(this).height() );
    3.}
  • Delete all table rows except first
    • view sourceprint?
    1.$('someTableSelector').find('tr:gt(0)').remove();
  • Selecting root element of a certain level in the document
    • view sourceprint?
    1.1 level:
    2.$('*:not(* *)');
    3.2 level:
    4.$('*:not(* *)').find('> *');
    5.3 level:
    6.$('*:not(* *)').find('> * > *');
  • Searching a string in jQuery
    • view sourceprint?
    1.var foundin = $('*:contains("some string bla bla")');
  • Get the distance scrolled from top
    • view sourceprint?
    1.alert($(document).scrollTop());
    by mua sam vui, 05/05/2011 07:05 PM
    Jquery is great     Reply
    so great , jquery is the big library javascript for all people to apply !
    Thanks CaoPhong ...
    by Preview
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    Efficient and Helpful JavaScript/jQuery Tips and Tricks - Page 3 - Language: English 0/5 0 votes / 103,384 previews / 1 comment 11/10/2010 This free HTML JavaScript tutorial provides 45+ JavaScript/jQuery tips and tricks that help you work in JavaScript tasks...Efficient and Helpful JavaScript/jQuery Tips and Tricks - Efficient and Helpful JavaScript/jQuery Tips and Tricks - Language: English

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