CODEWITHSUNDEEP
javascriptjquery
rob.m
rob.m

Reputation: 10571

How to count data on ajax success?

In php I am sending an array back to ajax on front end:

echo json_encode($totSaved);

Then on the front end I do:

...
 success: function(data) {
  setTimeout(function(){ 
    console.log(data);
    console.log(data.length);
...

Console:

console.log(data); = ["128545","128545"]

console.log(data.length); = 19

It should be giving me 2, what am I doing wrong?

Upvotes: 2

Views: 6917

Answers (1)

Rory McCrossan
Rory McCrossan

Reputation: 337560

As the result is 19 it seems that data is a string, not an array. As such you need to parse it, which you can do with JSON.parse():

success: function(data) {
  setTimeout(function() { 
    var arr = JSON.parse(data);
    console.log(arr);
    console.log(arr.length);
  }, /* timeout delay */); 
});

If you are always expecting a JSON response you could instead set the dataType property in the AJAX request settings to 'json'. That way jQuery will parse the response for you.

Upvotes: 5

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