1,错:
- document.getElementById('foo')
document.getElementById('foo')
对:
- $('foo')
$('foo')
2,错:
- var woot = document.getElementById('bar').value
- var woot = $('bar').value
var woot = document.getElementById('bar').value
var woot = $('bar').value
对:
- var woot = $F('bar')
var woot = $F('bar')
3,错:
- $('footer').style.height = '100px';
- $('footer').style.background = '#ffc';
$('footer').style.height = '100px';
$('footer').style.background = '#ffc';
对:
- $('footer').setStyle({
- height: '100px',
- background: '#ffc'
- })
$('footer').setStyle({
height: '100px',
background: '#ffc'
})
4,错:
- $('coolestWidgetEver').innerHTML = 'some nifty content'
$('coolestWidgetEver').innerHTML = 'some nifty content'
对:
- $('coolestWidgetEver').update('some nifty content')
- $('coolestWidgetEver').update('some nifty content').addClassName('highlight').next().hide()
$('coolestWidgetEver').update('some nifty content')
$('coolestWidgetEver').update('some nifty content').addClassName('highlight').next().hide()
5,错:
- new Ajax.Request('ninja.php?weapon1=foo&weapon2=bar')
new Ajax.Request('ninja.php?weapon1=foo&weapon2=bar')
对:
- new Ajax.Request('ninja.php', {
- parameters: {
- weapon1: 'foo',
- weapon2: 'bar'
- }
- })
new Ajax.Request('ninja.php', {
parameters: {
weapon1: 'foo',
weapon2: 'bar'
}
})
6,错:
- new Ajax.Request('blah.php', {
- method: 'POST',
- asynchronous: true,
- contentType: 'application/x-www-form-urlencoded',
- encoding: 'UTF-8',
- })
new Ajax.Request('blah.php', {
method: 'POST',
asynchronous: true,
contentType: 'application/x-www-form-urlencoded',
encoding: 'UTF-8',
})
对:
- new Ajax.Request('blah.php')
new Ajax.Request('blah.php')
7,错:
- Event.observe('myContainer', 'click', doSomeMagic)
Event.observe('myContainer', 'click', doSomeMagic)
对:
- $('myContainer').observe('click', doSomeMagic)
$('myContainer').observe('click', doSomeMagic)
8,错:
- $$('div.hidden').each(function(el) {
- el.show();
- })
$$('div.hidden').each(function(el) {
el.show();
})
对:
- $$('div.hidden').invoke('show')
$$('div.hidden').invoke('show')
9,错:
- $$('div.collapsed').each(function(el) {
- el.observe('click', expand);
- })
$$('div.collapsed').each(function(el) {
el.observe('click', expand);
})
对:
- $$('div.collapsed').invoke('observe', 'click', expand)
$$('div.collapsed').invoke('observe', 'click', expand)
10,错:
- $$('input.date').invoke('observe', 'focus', onFocus);
- $$('input.date').invoke('observe', 'blur', onBlur);
$$('input.date').invoke('observe', 'focus', onFocus);
$$('input.date').invoke('observe', 'blur', onBlur);
对:
- $$('input.date')
- .invoke('observe', 'focus', onFocus)
- .invoke('observe', 'blur', onBlur)
$$('input.date')
.invoke('observe', 'focus', onFocus)
.invoke('observe', 'blur', onBlur)
11,错:
- $('productTable').innerHTMl =
- $('productTable').innerHTML +
- '<tr><td>' + productId + ' '
- + productName + '</td></tr><tr><td>'
- + productId + ' ' + productPrice +
- '</td></tr>'
$('productTable').innerHTMl =
$('productTable').innerHTML +
'<tr><td>' + productId + ' '
+ productName + '</td></tr><tr><td>'
+ productId + ' ' + productPrice +
'</td></tr>'
对:
- var rowTemplate = new Template('<tr><td>#{id} #{name</td></tr><tr><td>#{id} #{price}</td></tr>');
- $('productTable').insert(
- rowTemplate.evaluate({
- id: productId,
- name: productName,
- price: productPrice
- }))
- )
var rowTemplate = new Template('<tr><td>#{id} #{name</td></tr><tr><td>#{id} #{price}</td></tr>');
$('productTable').insert(
rowTemplate.evaluate({
id: productId,
name: productName,
price: productPrice
}))
)
Part II:
http://thinkweb2.com/projects/prototype/?p=3
1,轻松监听键盘事件
- $('myInput').observe('keyup', function(e) {
- if (e.keyCode == Event.KEY_TAB)
- doSomethingCoolWhenTabIsPressed();
- })
$('myInput').observe('keyup', function(e) {
if (e.keyCode == Event.KEY_TAB)
doSomethingCoolWhenTabIsPressed();
})
2,不需要事件capturing
- $('productInfo').observe('click', displayProductInfo, false); // 'false' could be skipped
- $('productInfo').observe('click', displayProductInfo);
$('productInfo').observe('click', displayProductInfo, false); // 'false' could be skipped
$('productInfo').observe('click', displayProductInfo);
3,聪明的insert()
- new Insertion.Bottom('blogEntry',
- new Template('<div><h2>#{name}</h2><p>#{content}</p></div>')
- .evaluate({
- name: blogEntry.name,
- content: blogEntry.content
- })
- );
- // Insertion class is deprecated - it's recommended to use Element's insert method:
- $('blogEntry').insert(new Template('<div><h2>#{name}</h2><p>#{content}</p></div>')
- .evaluate({
- name: blogEntry.name,
- content: blogEntry.content
- }), 'bottom'); // 'bottom' can be skipped
- $('blogEntry').insert(new Template('<div><h2>#{name}</h2><p>#{content}</p></div>')
- .evaluate{(
- name: blogEntry.name,
- content: blogEntry.content
- }));
new Insertion.Bottom('blogEntry',
new Template('<div><h2>#{name}</h2><p>#{content}</p></div>')
.evaluate({
name: blogEntry.name,
content: blogEntry.content
})
);
// Insertion class is deprecated - it's recommended to use Element's insert method:
$('blogEntry').insert(new Template('<div><h2>#{name}</h2><p>#{content}</p></div>')
.evaluate({
name: blogEntry.name,
content: blogEntry.content
}), 'bottom'); // 'bottom' can be skipped
$('blogEntry').insert(new Template('<div><h2>#{name}</h2><p>#{content}</p></div>')
.evaluate{(
name: blogEntry.name,
content: blogEntry.content
}));
4,Form提交
- $('register').observe('submit', function(e) {
- Event.stop(e);
- $(this).request();
- })
- $('register').observe('submit', function(e) {
- Event.stop(e);
- new Ajax.Request($(this).readAttribute('action', {
- parameters: Form.serializeElements($(this).getInputs('', 'email'))
- })
- })
- $('register').observe('submit', function(e) {
- Event.stop(e);
- new Ajax.Request(this.readAttribute('action'), {
- parameters: Form.serializeElements($(this).getElements()
- .reject(function(el) {return el.hasAtrribute('multiple')})
- );
- })
- })
- $('register').observe('submit', function(e) {
- Event.stop(e);
- new Ajax.Request($(this).readAttribute('action', {
- parameters: Form.serializeElements($$('#register input:not([multiple])'))
- })
- })
$('register').observe('submit', function(e) {
Event.stop(e);
$(this).request();
})
$('register').observe('submit', function(e) {
Event.stop(e);
new Ajax.Request($(this).readAttribute('action', {
parameters: Form.serializeElements($(this).getInputs('', 'email'))
})
})
$('register').observe('submit', function(e) {
Event.stop(e);
new Ajax.Request(this.readAttribute('action'), {
parameters: Form.serializeElements($(this).getElements()
.reject(function(el) {return el.hasAtrribute('multiple')})
);
})
})
$('register').observe('submit', function(e) {
Event.stop(e);
new Ajax.Request($(this).readAttribute('action', {
parameters: Form.serializeElements($$('#register input:not([multiple])'))
})
})
Enjoy prototyping!