javascript - convert an array of strings and numbers to an array of numbers -

i have array of strings , numbers. need convert items numbers, i.e :

var = ["42.00", 33, 12.02, "30", 10]; 

convert to:

[42.00, 33, 12.02, 30, 10] 

for fallback compatibily purpose:

var = ["42.00", 33, 12.02, "30", 10]; var out;  if (typeof(array.prototype.map == 'function')) {     out = a.map(function(el){ return typeof(el) !== 'number' ? parsefloat(el) : el }); } else {     out = [];     (var = 0; < a.length; ++i) {         out[i] = typeof(a[i]) !== 'number' ? parsefloat(a[i]) : a[i];        } }  console.log(out); 

if element number won't parse it, else will.

if .map function not defined, procede using regular loop. should done because browsers not support ecma functions (like ie9):

fiddle :: http://jsfiddle.net/kndgcty8/1/