Pseudo array

    // Objects with length have the length attribute
    obj={
        "0":"Cai"."1":18.length:2
    }
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Three ways to convert a pseudo-array to an array

1. [].slice.call(obj) = array.protype.slice.call (obj)

var newArr=[].slice.call(obj)
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2.Array.form(obj), new syntax for ES6

    var newArr=Array.from(obj)
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3. Use extension operators, also ES6 syntax

var newArr= [...obj]
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