• step method

Makes the element require a given step.

• step( value )

  • value
    Type: Number
    Step value required

normalizer

Prepares/transforms the elements value for validation.

• normalizer( value )

  • value
    Type: String
    The value of the element.

Transform the value of an element and the result for validation instead of the initial value.

The normalizer can be defined global to all elements or local to only one element.

• With that said, the local normalizer will only run for the element for which it was defined.
• The global normalizer will run for all validated elements.

This normalizer can be then overrided for each element, as needed, by attaching one to it.

This way only the local one will run for that element, and the global one will run for others.

Note that this method:

• Doesn't change the elements' value, it only changes the value used for validation.
• Gets the value passed as argument, and "this" within it references the corresponding DOMElement.
• Needs to return a String value, otherwise it will throw a TypeError exception.

require_from_group method

Ensures a given number of fields in a group are complete.

In the options passed to the rule, supply the minimum number of fields
within the group that must be complete and a selector to define the
group.

Then apply this rule to all the fields within the group.
The form then cannot be submitted until at least the minimum number have
been completed.

Part of the additional-methods.js file

url method

Makes the element require a valid url

Return true, if the value is a valid url.

Works with text inputs.

required method

Makes the element required.

• required()

• required( dependency-expression )

  • dependency-expression
    Type: String
    An expression (String) that is evaluated in the context of the element's
    form, making the field required only if the expression returns more
    than one element.
    • Very often your expression will use selector filters such as #foo:checked, #foo:filled, #foo:visible. This plugin provides custom selectors for that purpose.

• required( dependency-callback )

  • dependency-callback
    Type: Function()
    The function is executed with the element as it's only argument: If it returns true, the element is required. 
    • Return false, if the element is empty (text input) or unchecked (radio/checkbox) or if nothing is selected (select).
    • Works with text inputs, selects, checkboxes and radio buttons.
    • To force a user to select an option from a select box, provide an empty
      option element like <option value="">Choose…</option>
    • Note that white spaces are considered valid.

remote method

• remote( options )

  • Requests a resource to check the element for validity.
  • options
    Type: Object
    For the URL of the resource to request for serverside validation (String) or options to fully customize the request, see jQuery.ajax for details.
    • These options deep-extend the defaults (dataType:"json", data:{nameOfTheElement:valueOfTheElement}). Any options you provide will override the defaults.
  • The serverside resource is called via jQuery.ajax (XMLHttpRequest) and
    gets a key/value pair corresponding to the name of the validated element
    and its value as a GET parameter.
    • The serverside response must be a
      JSON string that must be "true" for valid elements, and can be "false", undefined, or null for invalid elements, using the default error message.
    • If the serverside response is a string, eg. "That name is already taken, try peter123 instead", this string will be displayed as a custom error message in place of the default.
    • For more examples, take a look the marketo demo and the milk demo.

rangelength method

• rangelength( range )

  • range
    Type: Array
    Value range required

Return false if the element is：

• some kind of text input and its length is too short or too long
• a set of checkboxes that doesn't have enough, or has too many boxes checked
• a select that doesn't have enough, or has too many options selected

Works with text inputs, selects and checkboxes.

range method

• range( range )

  • range
    Type: Array
    Value range required 

phoneUS method

Validate for valid US phone number.

Works with text inputs.

Part of the additional-methods.js file

number method

Makes the element require a decimal number.

Returns true if the value contains a valid decimal number.

Works with text inputs.

• value
  Type: Number
  Step value required 

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