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Javascript: Difference between revisions
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** <nowiki>$("#selector_id").css("display", "");</nowiki> or <nowiki>$("#selector_id").css("display", "block");</nowiki> | ** <nowiki>$("#selector_id").css("display", "");</nowiki> or <nowiki>$("#selector_id").css("display", "block");</nowiki> | ||
** <nowiki>$("#selector_id").css("display", "none");</nowiki> | ** <nowiki>$("#selector_id").css("display", "none");</nowiki> | ||
== form submit validation == | |||
* [http://www.w3schools.com/jsref/event_form_onsubmit.asp Form onsubmit Event]. code snippet<ref>[http://www.w3schools.com/js/js_form_validation.asp JavaScript Form Validation]</ref>: | |||
<pre> | |||
<form name="myForm" action="demo_form.asp" onsubmit="return validateForm()" method="post">... | |||
</pre> | |||
* jQuery .submit()<ref>[http://api.jquery.com/submit/ .submit() | jQuery API Documentation]</ref> | |||
<pre> | |||
$(document).ready(function(){ | |||
$('#form').submit( function(){ | |||
return validateForm(); | |||
}); | |||
}); | |||
function validateForm() | |||
{ | |||
if ( condition ) | |||
{ | |||
alert('form was not validated'); | |||
return false; | |||
} | |||
} | |||
</pre> | |||
* [http://jqueryvalidation.org/ jQuery Validation Plugin | Form validation with jQuery]<ref>[http://brooky.cc/2011/08/04/using-jquery-validation-plugin-for-form-validation/ 好用的表單驗證工具 – jQuery validation plugin | brooky's blog]</ref> | |||
== Count the number of visible table rows == | == Count the number of visible table rows == | ||