jQuery memo1,2

Allow multiple actions in one line, chaining

addClass(), removeClass()

$(document).ready(function(){
});

$(function(){
});

---

//not include class, element
$('#selectd-plays li:not(.horizontal)').addClass('sub-level');
$('tr:not([th]):even').addClass('even')

//attribute
$('a[@title]')

//element
$('div[ol]')

---

// ^
$('a[@href^="mailto:"]').addClass('mailto')

//$
$('a[@href$=".pdf"]').addClass('pdflink')

//*
&('a[@href*="mysite.com"]').addClass('mysite')

---

//js zero-based ; CSS one-based
$('div.horizontal:eq(1)')

$('tr:odd').addClass('odd') = $('tr').filter(':odd').addClass('odd')
$('tr:even').addClass('even')
$('td:contains("Henry")').addClass('highlight')

---

//contain value
$('th').parent().addClass('table-heading')
$('td:contains("Henry")').next().addClass('highlight')
$('th').siblings().addClass('table-heading')

---

//拿到DOM Elements
$('#my-element') => jQuery object
$('#my-element').get(0).tagName