jQuery ajax function template

Example

$.ajax({
    url: "/Home/Index",
    data: { email: email, username: username, etc: etc },
    success: function (data) {
        debugger; // remove debugger before check-in.
        $("#somelabel").text(data.SomeText);
    },
    type: "POST",
    dataType: 'json'
});

Another example

$.ajax(
{
    url: "/Account/LogOn",
    type: "POST",
    dataType: 'json',
    data: {
        username: $("txtUserName").val(), 
        password: $("txtPassword").val(),
        rememberMe: $("#chkRememberMe").is(':checked')
    },
    success: function (mydata) {
        if(mydata.Success) {
            alert(mydata.WelcomeMessage);
        }
        else{
            alert(mydata.Error);
        }
    }
});

Javascript Function Objects

Having:

function validateFields() {
    // a lot of cool and interesting code goes here.
    var a = 1;
    var b = 2;
    var c = a + b;
}

the following

$('#submit').bind('click', function() {
    validateFields();
});

is similar to this:

$('#submit').bind('click', validateFields);

and, to this as well:

$('#submit').bind('click', function() {
    var a = 1;
    var b = 2;
    var c = a + b;
});

So you could say that

function validateFields() {
    // a lot of cool and interesting code goes here.
    var a = 1;
    var b = 2;
    var c = a + b;
}

is essentially the same as

var validateFields = function() {
    // a lot of cool and interesting code goes here.
    var a = 1;
    var b = 2;
    var c = a + b;
}

i.e. validateFields is not a function/method but an object. Therefore I conclude "Javascript is a different language in disguise."

jeditable maxlength

In jquery.jeditable.js add:

if (settings.maxlength) { input.attr('maxlength', settings.maxlength); }

right below:

if (settings.height != 'none') { input.height(settings.height); }

Then set maxlength

$('.loremipsum').editable('http://www.example.com/save.php', {
    ...
    maxlength: 20
});

reference: http://www.appelsiini.net/projects/jeditable (user Sasi's comment)

Remove JSON object from array/list

JavaScript

Code

// list of objects where the 'number' property is unique
var _numbers = [{number: 4589, name: "lorem"}, {number: 2554, name: "ipsum"}, {number: 9880, name: "siamet"}];

// find index for the object we want to remove from the list
var idx = -1;
var num = 9880;
for (var i = 0; i < _numbers.length; i++) {
 if (num == _numbers[i].number) {
  idx = i;
  break;
 }
}
// remove object from the list
if (idx != -1)
 _numbers.splice(idx, 1);

jQuery checkbox state

Markup (html)

< id="chkMatchedSets" type="checkbox">

Javascript (jQuery)

var ischecked = $("#chkMatchedSets").is(':checked');

markup:



javascript:



firebug:



end

Hide a picklist item or disable the picklist control

Hide an item



or Lock the field.

Prevent a form from being saved

Javascript - OnSaved() event



Actually it's:

event.returnValue = false;
return false;

What aborts the Save operation.
.