Code snippet for blog entry: Array Index versus Object Property Name

blog-array-index

var a = [];
a['0'] = 1; // assign value using property name as string
// number converted to string and used as property name
a[1]   = 2; // assign value using property as an integer
a[2.0] = 3; // assign value using property as a floating point number
console.log(a) // => [1,2,3]
console.log(a.length) // => 3