javascript - Using Fetch response in a if statement - Stack Overflow

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I have a fetch function that takes a URL and gives out the response.

public getHTTPResponse(URL : string) {
    fetch(URL).then(function(response) {
        return response;
    })
}

I try to use the response in a IF-statement.

For example if the response is 200 it should be true. So far I have:

if (this.getHTTPResponse(item.ListUrl) === )

Where item.ListUrl is a link. I can't get my head around on what I should have on the right side of the operator to test if the response is 200 (or any other for that matter). Any help?

I have a fetch function that takes a URL and gives out the response.

public getHTTPResponse(URL : string) {
    fetch(URL).then(function(response) {
        return response;
    })
}

I try to use the response in a IF-statement.

For example if the response is 200 it should be true. So far I have:

if (this.getHTTPResponse(item.ListUrl) === )

Where item.ListUrl is a link. I can't get my head around on what I should have on the right side of the operator to test if the response is 200 (or any other for that matter). Any help?

• javascript
• typescript
• http
• fetch

Share Improve this question Follow edited Sep 9, 2019 at 14:18 Michael 3,23977 gold badges4646 silver badges9292 bronze badges asked Nov 18, 2018 at 9:17 ArteArte 41722 gold badges66 silver badges1616 bronze badges 3

• You can't do anything on the right hand side; getHTTPResponse doesn't currently return anything, and if it did paring promise equality rarely makes sense. – jonrsharpe Commented Nov 18, 2018 at 9:26
• Possible duplicate of How to get data returned from fetch() promise? – jonrsharpe Commented Nov 18, 2018 at 9:27
• Can you post your success and failure response here so we can see what type of response it's returning – Prashant Pimpale Commented Nov 18, 2018 at 9:58

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1 Answer 1

Sorted by: Reset to default 4

The response object has a property status which value is an integer. Try like that:

  fetch(URL)
   .then(function(response) {
      if(response.status === 200) {
         // do something
       };
     })

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