Javascript checking if two values are equal using == not working

Question

I have this JSON file from which I am extracting a value:

var sta = req.jsonBody.sta   //where req.jsonBody.sta = open

So according to this my var sta should be equal to open. Now when I do this:

var turnOn = true
var open = "open"
if (sta == open)
{
    turnOn = false
    console.log(sta)
}

console.log(turnOn)

The value of turnOn should be false but my console is printing true. I don't now where i am wrong.

Please add a [minimal, complete, and verifiable example](https://stackoverflow.com/help/mcve/) which shows the actual problem. — Andreas, Dec 20 '17 at 08:59
@gurvinder372 The first in the if clause can only print `"open"` but then the second would print `false` — Andreas, Dec 20 '17 at 09:01
Try output your `req.jsonBody.sta` with `console.log`.. does it give "open" value? — StefansArya, Dec 20 '17 at 09:02
Check this Answer: https://stackoverflow.com/questions/3586775/what-is-the-correct-way-to-check-for-string-equality-in-javascript#3586781 — simonegg, Dec 20 '17 at 09:04
Chances are the `==` operator is working fine. Saying it is not working conveys no information. See comment from @Andreas — traktor, Dec 20 '17 at 09:07
Can @traktor53 you please reframe the question as I am not able ti find a appropriate title for it — Raghav Patnecha, Dec 20 '17 at 09:11
You have posed an [X-Y problem](https://meta.stackexchange.com/questions/66377/what-is-the-xy-problem). Start with the assumption made in the first line of code, in the comment. — traktor, Dec 20 '17 at 09:18

score 1 · Accepted Answer · answered Dec 20 '17 at 09:10

1

Normally it seems working.

req = {jsonBody:{sta:'open'}};

var sta = req.jsonBody.sta;

var turnOn = true;
var open = "open";
console.log('turnOn = '+turnOn);
if (sta == open)
{
    turnOn = false;
    //console.log(sta);
}
console.log('sta = '+sta);
console.log('turnOn = '+turnOn);

Until you have wrong data, like space , which looks like open but actually have open

req = {jsonBody:{sta:'open '}};

var sta = req.jsonBody.sta;

var turnOn = true;
var open = "open";
console.log('turnOn = '+turnOn);
if (sta == open)
{
    turnOn = false;
    //console.log(sta);
}
console.log('sta = '+sta);
console.log('turnOn = '+turnOn);

answered Dec 20 '17 at 09:10

freelancer

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@Andreas : I wanted to focus on data like `open` != `open ` – freelancer Dec 20 '17 at 09:13
@Andreas : Agreed – freelancer Dec 20 '17 at 09:15
@Andreas everything was working. The problem was just an extra space – Raghav Patnecha Dec 20 '17 at 09:19

Javascript checking if two values are equal using == not working

1 Answers1