с: {
a1:1
b1:2
}

e:[a,b] и d:[1,2]

var с = {"a1":1,"b1":2}, d = [], e = [];
Object.keys(с).forEach(function (key) {
  d.push(с[key])
  e.push(key.replace(/\d/,''))
});
alert([d,e].join('\n'))

o={a: 1, b: 2}
a=[]; b=[]

for(i in o){a.push(i); b.push(o[i])}
alert([a,b])


// [ [ 'a', 'b' ], [ 1, 2 ] ]

o={a: 1, b: 2}
a=[]; b=[]
o.__proto__.c = 8;

for(i in o){a.push(i); b.push(o[i])}
alert([a,b])


// [ [ 'a', 'b', 'c' ], [ 1, 2, 8 ] ]

keys=function(o){
 var out=[]
 for(var i in o) {if(!(o.hasOwnProperty(i))) return out; out.push(i)}
}