What kind of type is this statement?

In javascript : is it legal ?

 var obj = [ id: 开发者_如何转开发'1', name: '' ]; 

type typeof(obj) return n/a

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That is a syntax error in JavaScript. Probably it should be:

var obj = { id: '1', name: '' };

That's an object literal. An array literal looks like this:

var arr = [ 1, 2, 3 ];

You can put objects inside of arrays too:

var objarr = [ { id: '1', name: '' }, { id: '2', name: 'example' } ];

An empty object looks like:

var emptyObj = {};

An empty array looks like:

var emptyArr = [];

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I guess you want an object (looking at your variable name). In that case it would be:

var obj = { id: '1', name: '' }; 

The [ and ] tokens are used to define an array and must look like:

var arr = ['a', 'b', 'c'];

If you would like to know more about this in context to JSON, look at JSON

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Square brackets denotes an array, curly ones an object:

var obj = []; // short form to declare an array
var onj = {}; // short form to declare an object