JavaScript的数组创建

var a = new Array( );
a[0] = 1.2;
a[1] = "JavaScript";
a[2] = true;
a[3] = { x:1, y:3 };

//以下内容同下：
var a = new Array(1.2, "JavaScript", true, { x:1, y:3 });

var arrays = new Array('Transformers','Transformers2','Avatar');
var arrays = ['Transformers','Transformers2','Avatar'];