CODEWITHSUNDEEP
javascriptjson
logicstar
logicstar

Reputation: 197

How to check file exists in getJSON() function?

I am reading one Json file using getJSON() function.

$.getJSON('sample.json', function (data) {
    /* but file does not exist in few cases*/

}

How can i check wether file exists or not before processing?

regards

Upvotes: 3

Views: 2168

Answers (1)

Quentin
Quentin

Reputation: 943601

Do nothing (aside from having a properly configured HTTP server). The function you pass to getJSON will only get called (and thus only process the data) if you get a successful response.

If the file does not exist on the server you will get a 404 (or 410) which isn't a successful response, so it won't try to process the data.

getJSON returns a jqXHR object, so you can also handle the fail condition with different code:

$.getJSON('url')
    .done(function (data, textStatus, jqXHR) { /* success */ })
    .fail(function (jqXHR, textStatus, errorThrown) { /* error */ });

Upvotes: 5

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