i have apply my cv at a companny, but they ask me to write my own validate form plugin in jquery. but i know a litle about jquery and i download jquery.validate.js file down. but many concept i don't understand. if you don't mind you could add my skype account is mrledonking and show me some my misunderstand.
/*!
* jQuery Validation Plugin v1.13.1
*
* http://ift.tt/15JYAzL
*
* Copyright (c) 2014 Jörn Zaefferer
* Released under the MIT license
*/
(function( factory ) {
if ( typeof define === "function" && define.amd ) {
define( ["jquery"], factory );
} else {
factory( jQuery );
}
}(function( $ ) {
$.extend($.fn, {
// http://ift.tt/14z955j
validate: function( options ) {
// if nothing is selected, return nothing; can't chain anyway
if ( !this.length ) {
if ( options && options.debug && window.console ) {
console.warn( "Nothing selected, can't validate, returning nothing." );
}
return;
}
// check if a validator for this form was already created
var validator = $.data( this[ 0 ], "validator" );
if ( validator ) {
return validator;
}
// Add novalidate tag if HTML5.
this.attr( "novalidate", "novalidate" );
validator = new $.validator( options, this[ 0 ] );
$.data( this[ 0 ], "validator", validator );
if ( validator.settings.onsubmit ) {
this.validateDelegate( ":submit", "click", function( event ) {
if ( validator.settings.submitHandler ) {
validator.submitButton = event.target;
}
// allow suppressing validation by adding a cancel class to the submit button
if ( $( event.target ).hasClass( "cancel" ) ) {
validator.cancelSubmit = true;
}
// allow suppressing validation by adding the html5 formnovalidate attribute to the submit button
if ( $( event.target ).attr( "formnovalidate" ) !== undefined ) {
validator.cancelSubmit = true;
}
});
// validate the form on submit
this.submit( function( event ) {
if ( validator.settings.debug ) {
// prevent form submit to be able to see console output
event.preventDefault();
}
function handle() {
var hidden, result;
if ( validator.settings.submitHandler ) {
if ( validator.submitButton ) {
// insert a hidden input as a replacement for the missing submit button
hidden = $( "<input type='hidden'/>" )
.attr( "name", validator.submitButton.name )
.val( $( validator.submitButton ).val() )
.appendTo( validator.currentForm );
}
result = validator.settings.submitHandler.call( validator, validator.currentForm, event );
if ( validator.submitButton ) {
// and clean up afterwards; thanks to no-block-scope, hidden can be referenced
hidden.remove();
}
if ( result !== undefined ) {
return result;
}
return false;
}
return true;
}
// prevent submit for invalid forms or custom submit handlers
if ( validator.cancelSubmit ) {
validator.cancelSubmit = false;
return handle();
}
if ( validator.form() ) {
if ( validator.pendingRequest ) {
validator.formSubmitted = true;
return false;
}
return handle();
} else {
validator.focusInvalid();
return false;
}
});
}
return validator;
},
// http://ift.tt/1zOyO6l
valid: function() {
var valid, validator;
if ( $( this[ 0 ] ).is( "form" ) ) {
valid = this.validate().form();
} else {
valid = true;
validator = $( this[ 0 ].form ).validate();
this.each( function() {
valid = validator.element( this ) && valid;
});
}
return valid;
},
// attributes: space separated list of attributes to retrieve and remove
removeAttrs: function( attributes ) {
var result = {},
$element = this;
$.each( attributes.split( /\s/ ), function( index, value ) {
result[ value ] = $element.attr( value );
$element.removeAttr( value );
});
return result;
},
// http://ift.tt/1rDlB1V
rules: function( command, argument ) {
var element = this[ 0 ],
settings, staticRules, existingRules, data, param, filtered;
if ( command ) {
settings = $.data( element.form, "validator" ).settings;
staticRules = settings.rules;
existingRules = $.validator.staticRules( element );
switch ( command ) {
case "add":
$.extend( existingRules, $.validator.normalizeRule( argument ) );
// remove messages from rules, but allow them to be set separately
delete existingRules.messages;
staticRules[ element.name ] = existingRules;
if ( argument.messages ) {
settings.messages[ element.name ] = $.extend( settings.messages[ element.name ], argument.messages );
}
break;
case "remove":
if ( !argument ) {
delete staticRules[ element.name ];
return existingRules;
}
filtered = {};
$.each( argument.split( /\s/ ), function( index, method ) {
filtered[ method ] = existingRules[ method ];
delete existingRules[ method ];
if ( method === "required" ) {
$( element ).removeAttr( "aria-required" );
}
});
return filtered;
}
}
data = $.validator.normalizeRules(
$.extend(
{},
$.validator.classRules( element ),
$.validator.attributeRules( element ),
$.validator.dataRules( element ),
$.validator.staticRules( element )
), element );
// make sure required is at front
if ( data.required ) {
param = data.required;
delete data.required;
data = $.extend( { required: param }, data );
$( element ).attr( "aria-required", "true" );
}
// make sure remote is at back
if ( data.remote ) {
param = data.remote;
delete data.remote;
data = $.extend( data, { remote: param });
}
return data;
}
});
// Custom selectors
$.extend( $.expr[ ":" ], {
// http://ift.tt/1zOyO6n
blank: function( a ) {
return !$.trim( "" + $( a ).val() );
},
// http://ift.tt/1rDlB1X
filled: function( a ) {
return !!$.trim( "" + $( a ).val() );
},
// http://ift.tt/1zOyO6s
unchecked: function( a ) {
return !$( a ).prop( "checked" );
}
});
// constructor for validator
$.validator = function( options, form ) {
this.settings = $.extend( true, {}, $.validator.defaults, options );
this.currentForm = form;
this.init();
};
// http://ift.tt/1rDlB1Z
$.validator.format = function( source, params ) {
if ( arguments.length === 1 ) {
return function() {
var args = $.makeArray( arguments );
args.unshift( source );
return $.validator.format.apply( this, args );
};
}
if ( arguments.length > 2 && params.constructor !== Array ) {
params = $.makeArray( arguments ).slice( 1 );
}
if ( params.constructor !== Array ) {
params = [ params ];
}
$.each( params, function( i, n ) {
source = source.replace( new RegExp( "\\{" + i + "\\}", "g" ), function() {
return n;
});
});
return source;
};
$.extend( $.validator, {
defaults: {
messages: {},
groups: {},
rules: {},
errorClass: "error",
validClass: "valid",
errorElement: "label",
focusCleanup: false,
focusInvalid: true,
errorContainer: $( [] ),
errorLabelContainer: $( [] ),
onsubmit: true,
ignore: ":hidden",
ignoreTitle: false,
onfocusin: function( element ) {
this.lastActive = element;
// Hide error label and remove error class on focus if enabled
if ( this.settings.focusCleanup ) {
if ( this.settings.unhighlight ) {
this.settings.unhighlight.call( this, element, this.settings.errorClass, this.settings.validClass );
}
this.hideThese( this.errorsFor( element ) );
}
},
onfocusout: function( element ) {
if ( !this.checkable( element ) && ( element.name in this.submitted || !this.optional( element ) ) ) {
this.element( element );
}
},
onkeyup: function( element, event ) {
if ( event.which === 9 && this.elementValue( element ) === "" ) {
return;
} else if ( element.name in this.submitted || element === this.lastElement ) {
this.element( element );
}
},
onclick: function( element ) {
// click on selects, radiobuttons and checkboxes
if ( element.name in this.submitted ) {
this.element( element );
// or option elements, check parent select in that case
} else if ( element.parentNode.name in this.submitted ) {
this.element( element.parentNode );
}
},
highlight: function( element, errorClass, validClass ) {
if ( element.type === "radio" ) {
this.findByName( element.name ).addClass( errorClass ).removeClass( validClass );
} else {
$( element ).addClass( errorClass ).removeClass( validClass );
}
},
unhighlight: function( element, errorClass, validClass ) {
if ( element.type === "radio" ) {
this.findByName( element.name ).removeClass( errorClass ).addClass( validClass );
} else {
$( element ).removeClass( errorClass ).addClass( validClass );
}
}
},
// http://ift.tt/1zOyMeG
setDefaults: function( settings ) {
$.extend( $.validator.defaults, settings );
},
messages: {
required: "This field is required.",
remote: "Please fix this field.",
email: "Please enter a valid email address.",
url: "Please enter a valid URL.",
date: "Please enter a valid date.",
dateISO: "Please enter a valid date ( ISO ).",
number: "Please enter a valid number.",
digits: "Please enter only digits.",
creditcard: "Please enter a valid credit card number.",
equalTo: "Please enter the same value again.",
maxlength: $.validator.format( "Please enter no more than {0} characters." ),
minlength: $.validator.format( "Please enter at least {0} characters." ),
rangelength: $.validator.format( "Please enter a value between {0} and {1} characters long." ),
range: $.validator.format( "Please enter a value between {0} and {1}." ),
max: $.validator.format( "Please enter a value less than or equal to {0}." ),
min: $.validator.format( "Please enter a value greater than or equal to {0}." )
},
autoCreateRanges: false,
prototype: {
init: function() {
this.labelContainer = $( this.settings.errorLabelContainer );
this.errorContext = this.labelContainer.length && this.labelContainer || $( this.currentForm );
this.containers = $( this.settings.errorContainer ).add( this.settings.errorLabelContainer );
this.submitted = {};
this.valueCache = {};
this.pendingRequest = 0;
this.pending = {};
this.invalid = {};
this.reset();
var groups = ( this.groups = {} ),
rules;
$.each( this.settings.groups, function( key, value ) {
if ( typeof value === "string" ) {
value = value.split( /\s/ );
}
$.each( value, function( index, name ) {
groups[ name ] = key;
});
});
rules = this.settings.rules;
$.each( rules, function( key, value ) {
rules[ key ] = $.validator.normalizeRule( value );
});
function delegate( event ) {
var validator = $.data( this[ 0 ].form, "validator" ),
eventType = "on" + event.type.replace( /^validate/, "" ),
settings = validator.settings;
if ( settings[ eventType ] && !this.is( settings.ignore ) ) {
settings[ eventType ].call( validator, this[ 0 ], event );
}
}
$( this.currentForm )
.validateDelegate( ":text, [type='password'], [type='file'], select, textarea, " +
"[type='number'], [type='search'] ,[type='tel'], [type='url'], " +
"[type='email'], [type='datetime'], [type='date'], [type='month'], " +
"[type='week'], [type='time'], [type='datetime-local'], " +
"[type='range'], [type='color'], [type='radio'], [type='checkbox']",
"focusin focusout keyup", delegate)
// Support: Chrome, oldIE
// "select" is provided as event.target when clicking a option
.validateDelegate("select, option, [type='radio'], [type='checkbox']", "click", delegate);
if ( this.settings.invalidHandler ) {
$( this.currentForm ).bind( "invalid-form.validate", this.settings.invalidHandler );
}
// Add aria-required to any Static/Data/Class required fields before first validation
// Screen readers require this attribute to be present before the initial submission http://ift.tt/1rDlymE
$( this.currentForm ).find( "[required], [data-rule-required], .required" ).attr( "aria-required", "true" );
},
// http://ift.tt/1zOyMeI
form: function() {
this.checkForm();
$.extend( this.submitted, this.errorMap );
this.invalid = $.extend({}, this.errorMap );
if ( !this.valid() ) {
$( this.currentForm ).triggerHandler( "invalid-form", [ this ]);
}
this.showErrors();
return this.valid();
},
checkForm: function() {
this.prepareForm();
for ( var i = 0, elements = ( this.currentElements = this.elements() ); elements[ i ]; i++ ) {
this.check( elements[ i ] );
}
return this.valid();
},
// http://ift.tt/1rDlBid
element: function( element ) {
var cleanElement = this.clean( element ),
checkElement = this.validationTargetFor( cleanElement ),
result = true;
this.lastElement = checkElement;
if ( checkElement === undefined ) {
delete this.invalid[ cleanElement.name ];
} else {
this.prepareElement( checkElement );
this.currentElements = $( checkElement );
result = this.check( checkElement ) !== false;
if ( result ) {
delete this.invalid[ checkElement.name ];
} else {
this.invalid[ checkElement.name ] = true;
}
}
// Add aria-invalid status for screen readers
$( element ).attr( "aria-invalid", !result );
if ( !this.numberOfInvalids() ) {
// Hide error containers on last error
this.toHide = this.toHide.add( this.containers );
}
this.showErrors();
return result;
},
// http://ift.tt/1odq17L
showErrors: function( errors ) {
if ( errors ) {
// add items to error list and map
$.extend( this.errorMap, errors );
this.errorList = [];
for ( var name in errors ) {
this.errorList.push({
message: errors[ name ],
element: this.findByName( name )[ 0 ]
});
}
// remove items from success list
this.successList = $.grep( this.successList, function( element ) {
return !( element.name in errors );
});
}
if ( this.settings.showErrors ) {
this.settings.showErrors.call( this, this.errorMap, this.errorList );
} else {
this.defaultShowErrors();
}
},
// http://ift.tt/1rDlymH
resetForm: function() {
if ( $.fn.resetForm ) {
$( this.currentForm ).resetForm();
}
this.submitted = {};
this.lastElement = null;
this.prepareForm();
this.hideErrors();
this.elements()
.removeClass( this.settings.errorClass )
.removeData( "previousValue" )
.removeAttr( "aria-invalid" );
},
numberOfInvalids: function() {
return this.objectLength( this.invalid );
},
objectLength: function( obj ) {
/* jshint unused: false */
var count = 0,
i;
for ( i in obj ) {
count++;
}
return count;
},
hideErrors: function() {
this.hideThese( this.toHide );
},
hideThese: function( errors ) {
errors.not( this.containers ).text( "" );
this.addWrapper( errors ).hide();
},
valid: function() {
return this.size() === 0;
},
size: function() {
return this.errorList.length;
},
focusInvalid: function() {
if ( this.settings.focusInvalid ) {
try {
$( this.findLastActive() || this.errorList.length && this.errorList[ 0 ].element || [])
.filter( ":visible" )
.focus()
// manually trigger focusin event; without it, focusin handler isn't called, findLastActive won't have anything to find
.trigger( "focusin" );
} catch ( e ) {
// ignore IE throwing errors when focusing hidden elements
}
}
},
findLastActive: function() {
var lastActive = this.lastActive;
return lastActive && $.grep( this.errorList, function( n ) {
return n.element.name === lastActive.name;
}).length === 1 && lastActive;
},
elements: function() {
var validator = this,
rulesCache = {};
// select all valid inputs inside the form (no submit or reset buttons)
return $( this.currentForm )
.find( "input, select, textarea" )
.not( ":submit, :reset, :image, [disabled], [readonly]" )
.not( this.settings.ignore )
.filter( function() {
if ( !this.name && validator.settings.debug && window.console ) {
console.error( "%o has no name assigned", this );
}
// select only the first element for each name, and only those with rules specified
if ( this.name in rulesCache || !validator.objectLength( $( this ).rules() ) ) {
return false;
}
rulesCache[ this.name ] = true;
return true;
});
},
clean: function( selector ) {
return $( selector )[ 0 ];
},
errors: function() {
var errorClass = this.settings.errorClass.split( " " ).join( "." );
return $( this.settings.errorElement + "." + errorClass, this.errorContext );
},
reset: function() {
this.successList = [];
this.errorList = [];
this.errorMap = {};
this.toShow = $( [] );
this.toHide = $( [] );
this.currentElements = $( [] );
},
prepareForm: function() {
this.reset();
this.toHide = this.errors().add( this.containers );
},
prepareElement: function( element ) {
this.reset();
this.toHide = this.errorsFor( element );
},
elementValue: function( element ) {
var val,
$element = $( element ),
type = element.type;
if ( type === "radio" || type === "checkbox" ) {
return $( "input[name='" + element.name + "']:checked" ).val();
} else if ( type === "number" && typeof element.validity !== "undefined" ) {
return element.validity.badInput ? false : $element.val();
}
val = $element.val();
if ( typeof val === "string" ) {
return val.replace(/\r/g, "" );
}
return val;
},
check: function( element ) {
element = this.validationTargetFor( this.clean( element ) );
var rules = $( element ).rules(),
rulesCount = $.map( rules, function( n, i ) {
return i;
}).length,
dependencyMismatch = false,
val = this.elementValue( element ),
result, method, rule;
for ( method in rules ) {
rule = { method: method, parameters: rules[ method ] };
try {
result = $.validator.methods[ method ].call( this, val, element, rule.parameters );
// if a method indicates that the field is optional and therefore valid,
// don't mark it as valid when there are no other rules
if ( result === "dependency-mismatch" && rulesCount === 1 ) {
dependencyMismatch = true;
continue;
}
dependencyMismatch = false;
if ( result === "pending" ) {
this.toHide = this.toHide.not( this.errorsFor( element ) );
return;
}
if ( !result ) {
this.formatAndAdd( element, rule );
return false;
}
...............
the first is how they treat to html5 elements input required.
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