Tickerid function to identify the ticker

Question

I cannot find a way in which the command tickerid works for me.. I want to make an IF statment where

If (the current ticker i'm on = a specific ticker i've put) then (execute a formula) else (do nothing)

So i want my indicator to work in different parameters depending on the assets.

Can someone help me what command i should use ?

Answer 1

An example.
This will change the background color, depending on the ticker you select.

//@version=4
study(title="TickerId", shorttitle="TCK", overlay=true)

var color   myColor = na

if barstate.isfirst
    if syminfo.ticker == "AAPL"
        myColor := color.red
    else if syminfo.ticker == "MSFT"
        myColor := color.green
    else if syminfo.ticker == "TSLA"
        myColor := color.blue
    else
        myColor := na

bgcolor(myColor)

Edit 1 in response to this comment.
When you declare a variable, and initialize it with na, you need to specify the type of the variable.
Also, in your case, syminfo.tickerid must be used instead of syminfo.ticker, because I see that you use the format EXCHANGE:SYMBOL.
The code below will work.
Please remember to add the //@version=4 tag in the beginning of your script.

//@version=4
study(title="TickerId", shorttitle="TCK", overlay=true, scale=scale.left)

var int Periods = input(20, "Periods")

var color   myColor = na
var float   ATR     = na 

if syminfo.tickerid == "CAPITALCOM:US100"
    ATR := atr(Periods) * 1.9
    myColor := color.green
else 
    ATR := atr(Periods) 
    myColor := color.red

plot(ATR)
bgcolor(myColor)

Answer 2

"ticker_id": "DXB_KLV",
    "base_currency": "DXB",
    "target_currency": "KLV",
    "last_price": "6.699087",
    "base_volume": "109045.96631366048",
    "target_volume": "730508.4153342808",
    "oferta": "6.699087",
    "preguntar": "5.585349",
    "alto": "6.699087",
    "bajo": "5.585349"