What type of array is this?
Or is it not an array? and where can I find information about creating something with this structure?

    [
        ['Firefox',   45.0],
        ['IE',       26.8],
        ['Safari',    8.5],
        ['Opera',     6.2],
        ['Others',   0.7]
    ]
What type of array is this?
===

Or is it not an array? and where can I find information about creating something with this structure?

    [
        ['Firefox',   45.0],
        ['IE',       26.8],
        ['Safari',    8.5],
        ['Opera',     6.2],
        ['Others',   0.7]
    ]