對(duì)象構(gòu)造器
本例使用函數(shù)來(lái)構(gòu)造對(duì)象：
function person(firstname, lastname, age, eyecolor)
{
this.firstname = firstname;
this.lastname = lastname;
this.age = age;
this.eyecolor = eyecolor;
}在JavaScript中，this通常指向的是我們正在執(zhí)行的函數(shù)本身，或者是指向該函數(shù)所屬的對(duì)象（運(yùn)行時(shí)）
function movie(title, director) {
this.title = ;
this.director =;
}
創(chuàng)建 JavaScript 對(duì)象實(shí)例
一旦您有了對(duì)象構(gòu)造器，就可以創(chuàng)建新的對(duì)象實(shí)例，就像這樣：
var myFather = new person("John","Doe",50,"blue");
var myMother = new person("Sally","Rally",48,"green");
document.write(myFather.age); // -> 50
document.write(myMother.name); // -> Sally提示: myFather 和 myMother 是 person 對(duì)象的實(shí)例,它們的屬性分配給相應(yīng)的值。
創(chuàng)建對(duì)象
請(qǐng)考慮以下示例。
function person (name, age) {
this.name = name;
this.age = age;
}
var John = new person("John", 25);
var Loen = new person("Loen", 28);使用點(diǎn)語(yǔ)法訪問(wèn)對(duì)象的屬性。