If Array keys are actually strings, then what differentiates an Array from an Object?

Question

I mean, apart from the [].prototype methods and the strictly-"stringmeric" keys?

Anything?

Could an array said to be an object that by convention has exclusively "numeric" string values as keys, and inherits methods from Array.prototype?

Are there any other differences?

Pointy · Accepted Answer · 2013-11-26 14:26:08Z

2

The key difference is the automatic behavior of the .length property.

answered Nov 26, 2013 at 14:26

Pointy

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Comments

Dauh Fhauc · Accepted Answer · 2013-11-26 14:27:20Z

1

You get the Array prototype such as

$ ['foo', 'bar'].length
2

$ ['foo', 'bar'].join('|')
'foo|bar'

// etc...