convert multidimensional array element to integer in javascript

Question

I have two dimensional array which contain element in format Name,Number. i want to convert Number part to integer

var iTicketTypeCount = [];

var sTicketTypeCount = saResponse[5].split(',');

while (sTicketTypeCount[0]) {
     iTicketTypeCount.push(sTicketTypeCount.splice(0, 2));
}

My iTicketTypeCount contains

[['Firefox',   '45'],['IE',       '26'],['Safari',    '5'],['Opera',     '6'],['Others',   '7']]

and i want it like

[['Firefox',   45],['IE',       26],['Safari',    5],['Opera',     6],['Others',   7]]

Only the second element should get converted into integer.

techfoobar · Accepted Answer · 2013-08-16 15:29:09Z

5

Easiest imo would be using Array.map()

var arr = [['Firefox', '45'],['IE', '26'],['Safari', '5'],['Opera', '6'],['Others', '7']];

arr = arr.map(function(x) {
    return [x[0], Number(x[1])];
});

answered Aug 16, 2013 at 15:29

techfoobar

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2 Comments

metadept Over a year ago

Not that performance is likely to be a concern here, but I'm curious about the advantages of map versus iterating and parsing. Is the mapped function called each time that element is accessed, or is its result stored?

techfoobar Over a year ago

map() simply gives you a chance to process each element in an array conveniently. The plus is that this iteration is done in native code - unlike a loop we write.

metadept · Accepted Answer · 2013-08-16 15:31:22Z

2

You can use the parseInt function to simply convert this:

$.each(arry, function(i, elem) {
    arry[i] = [elem[0], parseInt(elem[1])];
});

answered Aug 16, 2013 at 15:31

metadept

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Comments

kalley · Accepted Answer · 2013-08-16 15:31:11Z

1

var iTicketTypeCount = [];

var sTicketTypeCount = saResponse[5].split(',');

while (sTicketTypeCount[0]) {
     sTicketTypeCount[1] = Number(sTicketTypeCount[1]);
     iTicketTypeCount.push(sTicketTypeCount.splice(0, 2));
}

You could do it without using another function.

answered Aug 16, 2013 at 15:31

kalley

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Comments

Arun P Johny · Accepted Answer · 2013-08-16 15:34:10Z

1

Try $.each()

var arr = [['Firefox',   '45'],['IE',       '26'],['Safari',    '5'],['Opera',     '6'],['Others',   '7']]

$.each(arr, function(idx, value){
    value[1] = +value[1]
})

Demo: Fiddle

answered Aug 16, 2013 at 15:34

Arun P Johny

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