Return array int value of the respective String

Question

In the code below, priorityData array is in [80]="High" format i.e 80 is the integer value of High. I want to extract and use integer value 80 whenever my string is equivalent to "High". How should I do that?

if (service.priorityData[i] === priorityString) {
    logger.info("Priority string", service.priorityData[i].values());
    return service.priorityData[i].values();
} else {
    return null;
}

service.priorityData = {0 : "None", 20: "Low, 80: "High"}

But it doesn't return anything when I use this code.

You're not making sense. Is [80]="High" a string or are you saying that the 80th element in the array is equal to "High". — Mike Cluck
– Mike Cluck, Commented Apr 22, 2016 at 22:04
Sorry if the question is not clear. I mean priority data is in format [80] = "High". 80 is the integer value of string "High". and I want to use 80 instead of String "High" — user2128
– user2128, Commented Apr 22, 2016 at 22:09
Okay but where does 80 live? Is that the index of the array? Give me an example of service.priorityData[i]. — Mike Cluck
– Mike Cluck, Commented Apr 22, 2016 at 22:10
Then it sounds like it's a backwards dictionary. The only way to retrieve that data without any other reference point would be to do a loop over the keys of the dictionary and check priorityData[key] === "High" then key will be 80. — Mike Cluck
– Mike Cluck, Commented Apr 22, 2016 at 22:20
If your data is exactly as you've shown in your edit then I was right the first time. i will be the value. Which would be the exact same thing as going back through the keys of an object. — Mike Cluck
– Mike Cluck, Commented Apr 22, 2016 at 22:31

Scott Schwalbe · Accepted Answer · 2016-04-22 22:31:38Z

1

I would switch the keys on your priority Data, then you can just return the value of the key, or null

service.priorityData = {
  "None": 0,
  "Low": 20,
  "High": 80
}

return service.priorityData[priorityString] || null

answered Apr 22, 2016 at 22:31

Scott Schwalbe

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1 Comment

user2128 Over a year ago

i am using rest api to get the data. so i cannot change the data format

Barmar · Accepted Answer · 2016-04-22 22:48:42Z

0

Simply loop through the object and return the key when the value matches what you want.

for (var key in service.priorityData) {
    if (service.priorityData[key] == priorityString) {
        return key;
    }
    return null; // not found
}

answered Apr 22, 2016 at 22:48

Barmar

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Comments

Leonid Lazaryev · Accepted Answer · 2016-04-22 22:38:28Z

0

It seems like you try to access object property. In this case you can access it thru next convention:

service.priorityData['80']

edited Apr 22, 2016 at 22:38

answered Apr 22, 2016 at 22:31

Leonid Lazaryev

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1 Comment

Mark E Over a year ago

The second option would throw and Uncaught SyntaxError: Unexpected number. Only the first option works to access and object, however I'm not sure that that's what op is asking

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