how to implement Search function using Javascript or jquery

问题

here i write code where all persons names comes from Facebook API . and it is showing on lightbox. now i want to implement search functionality using javasciprt/jquery . Can you help me how should i implement search function ?

   <div> <input type="text" id="search-criteria"/>
    <input type="button" id="search" value="search" onClick="tes();"/> </div>
<fieldset>
    <legend>Invite Facebook Friend</legend>

    <div class="fbbox">
    <img src="images/User.png" class="fbimg" />
    <div class="fix"><label for="check-2" class="left"> James </label></div>
    <input type="checkbox" name="fb" id="check-1" value="action" class="leftcx"/>
    </div>

    <div class="fbbox">
    <img src="images/User.png" class="fbimg" />
    <div class="fix"><label for="check-2" class="left">Alan </label></div>
    <input type="checkbox" name="fb" id="check-2" value="comedy" class="leftcx"/>
    </div>

    <div class="fbbox">
    <img src="images/User.png" class="fbimg" />
    <div class="fix"><label for="check-3" class="left"> Mathew </label></div>
    <input type="checkbox" name="fb" id="check-3" value="epic" class="leftcx"/>
    </div>

回答1:

$("#search-criteria").on("keyup", function() {
    var g = $(this).val();
    $(".fbbox .fix label").each( function() {
        var s = $(this).text();
        if (s.indexOf(g)!=-1) {
            $(this).parent().parent().show();
        }
        else {
            $(this).parent().parent().hide();
        }
    });
});​

Working Fiddle

or Better Way:

$("#search-criteria").on("keyup", function() {
    var g = $(this).val().toLowerCase();
    $(".fbbox .fix label").each(function() {
        var s = $(this).text().toLowerCase();
        $(this).closest('.fbbox')[ s.indexOf(g) !== -1 ? 'show' : 'hide' ]();
    });
});​

Working Fiddle

回答2:

Use Jquery

​  $(document).ready(function(){

   var search = $("#search-criteria");
   var items  = $(".fbbox");

   $("#search").on("click", function(e){

        var v = search.val().toLowerCase();
       if(v == "") { 
           items.show();
           return;
       }
        $.each(items, function(){
            var it = $(this);
            var lb = it.find("label").text().toLowerCase();
            if(lb.indexOf(v) == -1) 
                 it.hide();
        });
    });        
});​

Demo : http://jsfiddle.net/C3PEc/2/

回答3:

Maybe use indexOf method:

var text ="some name";
var search = "some";

if (text.indexOf(search)!=-1) {

    // do someting with found item

}

回答4:

You can use regular expression instead of indexOf as it may not work in IE7/IE8 and using regular expression you will can also use the 'i' modifier to make the search case insensitive.

Thanks

来源：https://stackoverflow.com/questions/14031369/how-to-implement-search-function-using-javascript-or-jquery