Getting Inividual values from a Javascript Array

Question

How can i get each variable into my javascript variable of a Javascript Array into my variable ??

I have this data

var Data = [
    {open:100,high:104.06},
    {open:103,high:105.06},
    {open:107,high:106.06},
    {open:109,high:107.06}
];

I have a function where i want to return each single value of this For example

for(var i = 0; i<Data.length; i++)
   var date = Data [i].open;

return date ;

Accept your recent questions.

hsz
– hsz

2011-04-10 13:22:02 +00:00
Commented Apr 10, 2011 at 13:22 — hsz
– hsz, Commented Apr 10, 2011 at 13:22
I am not quite sure what do you want to achive...

Elijan
– Elijan

2011-04-10 13:23:09 +00:00
Commented Apr 10, 2011 at 13:23 — Elijan
– Elijan, Commented Apr 10, 2011 at 13:23
_.pluck(Data, "open")

Raynos
– Raynos

2011-04-10 13:50:22 +00:00
Commented Apr 10, 2011 at 13:50 — Raynos
– Raynos, Commented Apr 10, 2011 at 13:50

user447356 · Accepted Answer · 2011-04-10 13:22:02Z

1

Function can't return more than one value.

What you can do, is return new array with all the "open" values:

function GetDates() {
   var dates = [];
   for(var i = 0; i<Data.length; i++)
      dates.push(Data[i].open);
   return dates;
}

This way you can get the value of the second item (103) with such code:

var arrDates = GetDates();
alert(arrDates[1]);

answered Apr 10, 2011 at 13:22

user447356

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Comments

hsz · Accepted Answer · 2011-04-10 17:53:55Z

0

Try with:

var Data = [
    {open:100,high:104.06},
    {open:103,high:105.06},
    {open:107,high:106.06},
    {open:109,high:107.06}
];

function getOpens(Data) {

    var opens = [];
    for(var i = 0; i<Data.length; i++) {
       if ( opens.indexOf( Data[i].open ) == -1 ) {
           opens.push( Data[i].open );
       }
    }

    return opens;
}

var numbers = getOpens( Data ).join(' ');

It will returns an array with open properties.

edited Apr 10, 2011 at 17:53

answered Apr 10, 2011 at 13:21

hsz

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3 Comments

Kiran Over a year ago

Thank you very much , i have tried this aproach , but each time it is returning all values , i want to return single value (FOr example each time 100,103,107,109 100,103,107,109 100,103,107,109 100,103,107,109) but i want to return only 100 103 107 109 only once

Kiran Over a year ago

var date = Data[n].open; return date; How can i supply the value n here from the for loop ?? for(var i = 0; i<Data.length; i++) { }

hsz Over a year ago

I've edited answer. It will return an array of unique values. That array you can join with space separator with join(' ').

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