ת javascriptʵÏÖ½Ó¿Ú
ÔÎĵØÖ·:http://www.cnblogs.com/harrychen66/archive/2008/10/10/488457.html
javascriptʵÏÖ½Ó¿Ú
ÏàÐźܶàÈËÖ®ËùÒÔ¶ÔjavascriptûÓкøÐ,¿ÉÄÜÊÇÒòΪËüÌ«ËæÒâÁË,ÀýÈ綨Òå±äÁ¿¿ÉÒÔËæÒâµÄ¼Óvar,»òÕß²»¼Ó,ÿÌõÓï¾äºóÃæµÄ¿ÉÒÔËæÒâµÄ¼ÓÉÏ";",»òÕß²»¼Ó,¿ÉÄÜ×îÄÑÈÌÊܵÄÊÇ,varÁËÒ»¸ö±äÁ¿ºó,Ëü¿ÉÒÔÊÇÈκÎÀàÐÍ,ûÓÐÏÞÖÆ.
ÀýÈ綨ÒåÁËÒ»¸östrµÄ±äÁ¿
var str;
ûÓи³Öµ¸øËü,ËüÊÇÒ»¸ö"undefined"ÀàÐ͵ıäÁ¿
È»ºó:
str = "hello world!";
Ëü¾ÍÊÇÒ»¸östringÀàÐ͵ıäÁ¿,È»ºóÈç¹ûÄãϲ»¶,Äã¿ÉÒÔ³¢ÊÔÔٸıäËüµÄÀàÐÍ:
str = 1;
ÕâʱËü¾ÍÊÇÒ»¸önumberÀàÐÍÁË.
Èç´Ë¿íÈݵÄÀàÐͱ任,ÓÐʱȷʵ´øÀ´·½±ã,²»¹ýÄãÏëÒªËüÏóc#»òÕ߯äËûÓïÑÔÒ»ÑùÒªÑϸñµÄÀàÐ͹淶,Ò²ÊÇÓа취×öµ½µÄ,ÕâÀïÓÃÁËÀàËÆ.netµÄ½Ó¿ÚÌØÐÔ,²»¹ý½«ÒªËµµÄ·½·¨,²»ÄÜÔÚ"±àÒë"Öмì²é,Ö»ÄÜÔÚÔËÐÐʱ¼ì²éÀàÐÍ.
Ê×ÏÈÓÐÒ»¸ö´æÔÚµÄÀà:
function Person(){
this.name = "";
this.age = 0;
this.get = function(){
return "my name is " + this.name + ", and i am " + this.age + " years old";
};
this.set = function(name, age){
this.name = name;
this.age = age;
};
}
ÕýÈ·µÄʹÓÃÈç:
var person = new Person();
person.set("harry", 27);
var str = person.get();
alert(str);
ÕýÈçÇ°ÃæËµµÄ,Èç¹ûÊÇÏÂÃæµÄ×ö·¨Ò²ÊDz»»á³öÏÖÈκÎÎÊÌâµÄ:
person.setName(true, "hello");
ºÃÁË,Èç¹ûÏÖÔÚÄãÎÞ·¨ÈÌÊܳöÏÖÕâÑùµÄÇé¿ö,ÓýӿÚʵÏÖËü°É:
function interface(){
this.arrFunc = []; // ±£´æÕâ¸öÀàµÄ·½·¨Êý×é
this.addMethod = function(sFuncName, aParamType, sReturnType){ // Ìí¼Ó½Ó¿ÚµÄ·½·¨
this.arrFunc[this.arrFunc.length] = {funcName:sFuncName, param:aParamType, ret:sReturnType}; // ·½·¨Ãû³Æ,²ÎÊýÀàÐÍ,·µ»ØÀàÐÍ
};
this.set = function(obj){
fo
Ïà¹ØÎĵµ£º
Definition and Usage
¶¨ÒåÓëÓ÷¨The constructor property is a reference to the function that created an object.
constructorÊôÐÔÊÇËù½¨Á¢¶ÔÏóµÄº¯Êý²Î¿¼Syntax
Óï·¨object.constructor
Example 1
¾ÙÀý
In this example we will show how to use the constructor property:
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ÏÂÃæÊÇJS½Å±¾(floatdiv.js)
/*======================================================================
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DESIGN BY : Åí¹ú»Ô
DATE: 2004-02-26
SITE: http://kacarton.yeah.net/
BLOG: http://blog.csdn.net/nhconch
EMAIL: kacarton@sohu.com
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ÐèÒªÒýÈëjquery-1.3.2.js
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function getCurrentWidth(){
var currentWidth = 0;
// handle IE 6
if ($.browser.msie && $.browser.version < 7) {
var scrollWidth = Math.max(
document.documentElement.scrollWidth,
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