CODEWITHSUNDEEP
javascriptarraysloops
RegarBoy
RegarBoy

Reputation: 3521

Using the loop value inside an Array

I want loop through 1 to 21 and then use this loop numbers for getting an Array of Strings ['e1.wkh',...'e21.wkh']. But right now the only value I got is ['e21.wkh'].

function calculateStats() {

    var obj = {}

    var deviceId = "34534";

    for (var i = 1; i <= 21; i++) {

        var loo = i.toString();

        console.log(loo);

        obj[deviceId] = ['e' + loo + '.kwh'];

        console.log(obj[deviceId]);
    }

}

Upvotes: 0

Views: 84

Answers (4)

Jay Gajjar
Jay Gajjar

Reputation: 36

Replace below line

obj[deviceId] = ['e' + loo + '.kwh'];

With

(obj[deviceId])?obj[deviceId].push('e' + loo + '.kwh'):obj[deviceId]=['e' + loo + '.kwh'];

Upvotes: 1

Arathi Sreekumar
Arathi Sreekumar

Reputation: 2584

Here is a possible solution:

The issue was you were overwriting your obj[deviceId].

function calculateStats() {

    var obj = {}

    var deviceId = "357803045265259@rayleigh";

    obj[deviceId] = [];

    for (var i = 1; i <= 21; i++) {

        var loo = i.toString();

        console.log(loo);

        obj[deviceId].push('e' + loo + '.kwh');

        console.log(obj[deviceId]);
    }

}

https://jsfiddle.net/q651uhde/

Upvotes: 1

Andy
Andy

Reputation: 63524

Set up the array first and then push each string to it. No need to convert the index to a string as it will be coerced to a string when you push it to the array anyway.

function calculateStats() {

  var obj = {};
  var deviceId = "357803045265259@rayleigh";
  obj[deviceId] = [];

  for (var i = 1; i <= 21; i++) {
    obj[deviceId].push('e' + i + '.kwh');
  }

}

DEMO

Upvotes: 0

ibrahimbayer
ibrahimbayer

Reputation: 262

function calculateStats() {

var obj = [];

var deviceId = "1111@rayleigh";

for (var i = 1; i <= 21; i++) {

    var loo = i.toString();

    console.log(loo);

    obj.push('e' + loo + '.kwh');


}

console.log(obj);

} obj carries your array, is that what you want?

Upvotes: 0

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