Let’s talk about Array and Object on data access application (by javascript).

——Array

Basic operating: Read a array:

var user = ['blue','tony','chen'];
console.log(user[0]);//'blue'

Add a element into a array:

var aaa = new Array();
aaa.push('123');
aaa.push('456'); 
console.log(aaa)// ['123','456']

---

Object

Basic operating: Read a Object:

var info = { user:'blue'};
console.log(info.user);//'blue';

add a Object:

var info ={}
info.user = 'blue';
console.log(info);//{user:'blue'}

If you have a complete data and you want to merge into a one line,you can do that:

//combine with array and object

var alldata = [
    {user:'blue',sex:'male'},
    {user:'Tony',sex:'male'}
]

//Read
console.log(alldata[0].user) // 'blue'
//etc...

If you have a complex data ,you will be confused about these complex code.So, you can use “break point” tools to read this data.There are lots of tools support “breakpoint”:

google chrome

https://developers.google.com/chrome-developer-tools/docs/scripts-breakpoints

visual studio

http://msdn.microsoft.com/en-us/library/02ckd1z7.aspx

Have Fun!