jquery07

<!DOCTYPE HTML>

<html>

<head>

<meta http-equiv="Content-Type" content="text/html; charset=utf-8">

<title>无标题文档</title>

<script src="jquery-2.0.3.js"></script>

<script>

--------------------------------------------------------------

var obj = { name : 'hello' };

var obj1 = new Object();

var obj2 = [];

alert($.isPlainObject(obj));//true

alert($.isPlainObject(obj1));//true

alert($.isPlainObject(obj2));//false

--------------------------------------------------------------

var arr = [];

var obj1 = {};

function Aaa(){

}

var obj = new Aaa();

alert( $.isEmptyObject(obj) );//true

alert( $.isEmptyObject(obj1) );//true

alert( $.isEmptyObject(arr) );//true

function Aaa(){

}

Aaa.prototype.aa = 1232;

Aaa.prototype.show = function(){};

var obj = new Aaa();

alert( $.isEmptyObject(obj) );//flase

for ( name in obj ) {

    alert(name);//aa  show

}

-------------------------------------------------------------

function Aaa(){

}

Aaa.prototype.constructor = Aaa;//系统自动生成的

Aaa.prototype.show = function(){};

for( var attr in Aaa.prototype ){

    alert(attr);

}

--------------------------------------------------------------

$.error('这是错误');//出错的时候打的log

--------------------------------------------------------------

var str = '<li></li><li></li><script><\/script>';

console.log($.parseHTML(str,document,true));

---------------------------------------------------------------

$('<li></li>')  --> $.parseHTML(str)

    单标签------------>context.createElement( parsed[1] )

    多标签------------>jQuery.buildFragment( [ data ], context, scripts )

$.parseHTML();

---------------------------------------------------------------

var str = '<li></li><li></li>';

console.log($.parseHTML(str));

/*[li, li]

0: li

1: li

length: 2

__proto__: Array(0) */

var str = '<li></li><li></li><script><\/script>';

console.log($.parseHTML(str,document,true));

/*

[li, li, script]

0: li

1: li

2: script

length: 3

__proto__: Array(0)

*/

</script>

</head>

<body>

</body>

</html>

<!DOCTYPE HTML>

<html>

<head>

<meta http-equiv="Content-Type" content="text/html; charset=utf-8">

<title>无标题文档</title>

<script src="jquery-2.0.3.js"></script>

<script>

var str = '{"name":"hello"}';

alert($.parseJSON(str).name);

//JSON.parse和eval，eval也可以转json，eval可以解析任何类型的字符串，安全性和性能不如JSON.parse

JSON.stringify()；//把json变成字符串

</script>

</head>

<body>

<p id="someElement"></p>

<p id="anotherElement"></p>

<script>

var xml = "<rss version='2.0'><channel><title>RSS Title</title></channel></rss>",

xmlDoc = $.parseXML( xml ),//文档document对象，

$xml = $( xmlDoc ),

$title = $xml.find( "title" );

// Append "RSS Title" to #someElement

$( "#someElement" ).append( $title.text() );

// Change the title to "XML Title"

$title.text( "XML Title" );

// Append "XML Title" to #anotherElement

$( "#anotherElement" ).append( $title.text() );

-------------------------------------------------------------------

<parsererror>错误的信息</parsererror>

ActiveXObject

------------------------------------------------

function Aaa(){

    this.defaults = {

        show : $.noop

    };

}

Aaa.prototype.init = function(opt){

    $.extend( this.defaults , opt );

};

</script>

</body>

</html>

<!DOCTYPE HTML>

<html>

<head>

<meta http-equiv="Content-Type" content="text/html; charset=utf-8">

<title>无标题文档</title>

<script src="jquery-2.0.3.js"></script>

<script>

----------------------------------------------------------------------

function test() {

    jQuery.globalEval( "var newVar = true;" )

    var newVar1 = true;

}

test();

alert( newVar );

alert( newVar1 );

----------------------------------------------------------------------

function test(){

    var i = eval;

    i('var a = 1');

    eval('var b = 2');

    window.eval('var c = 3');

    alert( "s"+a );

    alert( "s"+b );

    alert( "s"+c );

}

test();

alert( a );//1

alert( b );//buxing

alert( c );//3

--------------------------------------------------------------

margin-top ->  marginTop

-ms-transform -> msTransform

-moz-transform -> MozTransform

----------------------------------------------------------------

$(function(){

    alert($.nodeName(document.documentElement,'html'));//true

    alert($.nodeName(document.body,'body'));//true

    alert( document.body.nodeName );//BODY

});

----------------------------------------------------------------

var arr = ['a','b','c','d'];

arguments childNodes getElementsByTagName

var json = { name : 'hello' , age : 20 };

$.each(json , function(i,value){//下标  每一个值

    alert(value);

    return false;

});

$.each(arr , function(i,value){//下标  每一个值

    alert(value);

    return false;//只执行一次

});

</script>

</head>

<body>

</body>

</html>

jquery07的更多相关文章

jQuery07源码 (3803 , 4299) attr() prop() val() addClass()等 : 对元素属性的操作
var nodeHook, boolHook, rclass = /[\t\r\n\f]/g, rreturn = /\r/g, rfocusable = /^(?:input|select|text ...
day55 Pyhton 前端Jquery07
昨日回顾: 表单,点击submit提交以后,服务端受到信息 import socket import pymysql from urllib.parse import unquote def run( ...

随机推荐

8.ES6测试
转自:http://www.ruanyifeng.com/blog/2015/12/a-mocha-tutorial-of-examples.html 如果测试脚本是用ES6写的,那么运行测试之前,需 ...
Eval函数知识总结
说道Json,我们先来聊聊eval 一.eval是什么?(解析器) eval是一个函数,看本质function eval() { [native code] } 二.怎样使用eval? 语法:str ...
Pycharm-连接服务器
json数据字典，以及数据在下拉框中显示
建立person_vocation.json数据字典文件,内容: [ {"id":1,"disabled":false,"selected" ...
Bootstrap-FileInput组件的简单Demo
官网: https://github.com/kartik-v/bootstrap-fileinput/ http://plugins.krajee.com/file-input HTML页面: ...
caffe(5) 其他常用层及参数
本文讲解一些其它的常用层,包括:softmax_loss层,Inner Product层,accuracy层,reshape层和dropout层及其它们的参数配置. 1.softmax-loss so ...
iOS开发——打包报错error: linker command failed with exit code 1
真机运行没问题,打包报错: clang: error: linker command failed with exit code 1 (use -v to see invocation) 原因:在Xc ...
Hexo Next 调优
Links对齐编辑themes/next/source/css/_custom下的custom.styl,添加如下代码即可. .links-of-blogroll-title{ margin-lef ...
COGS——T 21. [HAOI2005] 希望小学
http://www.cogs.pro/cogs/problem/problem.php?pid=21 ★★ 输入文件:hopeschool.in 输出文件:hopeschool.out ...
<Machine Learning in Action >之二朴素贝叶斯 C#实现文章分类
def trainNB0(trainMatrix,trainCategory): numTrainDocs = len(trainMatrix) numWords = len(trainMatrix[ ...

jquery07

jquery07的更多相关文章

随机推荐

热门专题