construct.js

来自「这是《JavaScript学习源代码》一书的源代码」· JavaScript 代码 · 共 18 行

// create a car constructor function
function car( maker, model, color)
{
  this.maker = maker || "Dodge";
  this.model = model || "Viper";
  this.color = color || "Silver";
  this.startup = startup; 
}

// define the startup function
function startup()
{
  alert("... the motor is now running!");
}

var viper = new car();

alert( viper.color + " " + viper.maker + " " + viper.model );