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1.NSArray / NSString / NSDictionary 不会自动转成对应的JS类型，像普通 NSObject 一样使用它们

Important annotations that needs attention:

//OC

 implementation JPObject

 +(NSArray *)data
 {
  return @[[NSMutableString stringWithString:@"JS"]];
 }

 +(NSMutableDictionary *)dict{
  return [[NSMutableDictionary alloc] init];
 }
 @end

//js

 require('JPObject')
 var ocStr = JPObject.data().objectAtIndex(0)
 ocStr.appendString("Patch")
 var dict = JPObject.dict()

2 dic如果要把 NSArray / NSString / NSDictionary 转为对应的 JS 类型，使用 .toJS() 接口:t.setObject_forKey(ocStr, 'name')

// JS

var data = require('JPObject').data().toJS()   
//data instanceof Array === true 
data.push("Patch") 
var dict = JPObject.dict()
dict.setObject_forKey(data.join(''), 'name')
dict = dict.toJS()
console.log(dict['name'])    //output: JSPatch
console.log(dict.objectForKey('name')) //output: JSPatch

3 使用 dispatch_after() dispatch_async_main() dispatch_sync_main() dispatch_async_global_queue() 接口调用GCD方法:

dispatch_after(dispatch_time(DISPATCH_TIME_NOW, (int64_t)(1.0 *     NSEC_PER_SEC)), dispatch_get_main_queue(), ^{
// do something
});

dispatch_async(dispatch_get_main_queue(), ^{
// do something
});

//js

dispatch_after(1.0, function(){
// do something
})

dispatch_async_main(function(){
// do something
})

dispatch_sync_main(function(){
// do something
})

dispatch_async_global_queue(function(){
// do something
})