方法调用
var a = {
name: 'sfp',
say: function(){
console.log('123');
}
}
a.say();
函数调用
var a = {
name: 'sfp',
say: function(){
var that = this;
var helper = function(){
that.name += 'sfp';
console.log(that.name);
}
//函数调用
helper();
}
}
a.say();
异常
var add = function(a){
throw{
name: 'TypeError',
message: 'add needs numbers'
}
}
var try_it = function(){
try{
add('1');
}catch(e){
console.log('has throw');
}
}
try_it();
扩充类型的功能
Function.prototype.method = function(name, func){
if(!this.prototype[name]){
this.prototype[name] = func;
}
return this;
}
String.method('test', function(){
console.log('test');
})
'123'.test();
模块
String.method('test1', function(){
var a = '12';
// 闭包：也就是返回一个函数
return function(){
console.log(a);
}
}())
'123'.test1();
