Json array getting first data

Question

I have an array which I declared as var myclinicsID = new Array(); and now, I push some data in it,when I alert it using alert(JSON.stringify(myclinicsID)) it gives me output of ["1","2","3","4"]

Now I want to use this for my function and when I look at in console, it gives me undefined, am I doing correct by my code :

getbarSeriesData(myclinicsID[0]['clinic_id'],data[i]['datemonths']);

I want to get myclinicsID first data element which is the value is 1

You don't have anything by clinic_id in the array

Mamun
– Mamun

2017-04-25 03:46:55 +00:00
Commented Apr 25, 2017 at 3:46 — Mamun
– Mamun, Commented Apr 25, 2017 at 3:46

Suresh Atta · Accepted Answer · 2017-04-25 03:45:55Z

2

myclinicsID[0]['clinic_id']

Should be

myclinicsID[0]

All you need the array index. When you say myclinicsID[0]['clinic_id'], that is trying to get the clinic_id property of "1" which is obvious undefined.

answered Apr 25, 2017 at 3:45

Suresh Atta

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4 Comments

Jc John Over a year ago

hello sir, since it was easy for you. can i ask another regardng with array?

Suresh Atta Over a year ago

@JcJohn You can ask.

Jc John Over a year ago

opps hello sir can we discuss something? @ANS

Jc John Over a year ago

for (var i in data) { categories.push(data[i]["datemonths"]); var innerLoop = 0 for(var i in data) { getbarSeriesData(myclinicsID[0],data[i]['datemonths']); innerLoop++; } } i have two loops and in my second loop, i want the length of my array to be the end of looping before going back to the outer loop

Rohìt Jíndal · Accepted Answer · 2017-04-25 04:38:26Z

2

Why myclinicsID[0]['clinic_id'] ? As there is nothing like clinic_id in your array.

Your array is single dimensional array. Hence, you can directly access the first element from an array using myclinicsID[0].

DEMO

var myclinicsID = new Array();
myclinicsID[0] = 1;
myclinicsID[1] = 2;
myclinicsID[2] = 3;
myclinicsID[3] = 4;

function getbarSeriesData(clientID) {
  console.log(clientID);
  alert(clientID);
}

getbarSeriesData(myclinicsID[0]);

edited Apr 25, 2017 at 4:38

answered Apr 25, 2017 at 4:27

Rohìt Jíndal

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6 Comments

Jc John Over a year ago

hello @Rohit, i have another question can you help me?

Jc John Over a year ago

hello. why is this not working ? alert(myclinicsID[0]);

Rohìt Jíndal Over a year ago

alert(myclinicsID[0]) is working fine. I updated my answer you can check now.

Jc John Over a year ago

getbarSeriesData(myclinicsID[0],data[i]['datemonths']); , in my console i got POST XHR localhost/clinic/patients_report/get_checkup/March/undefined

Jc John Over a year ago

why mine says undefine?

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