jQuery count the number of loops made using .each function

Question

I have a function that executes a number of times. I want to find using jQuery how many times the function is called. How do I do that?

Whenever a text field is changed, function showErrors is called. So depending on the number of text fields on a page, I should be able to find the number of times showErrors is called. how will I detect that within the showErrors function.

showErrors: function(errorMap, errorList) {  
    if ($formEl.find(".aimInput input").length == 2) {
        // $('.validate').html(errorList[0]['message']);
        $(".aimLocal .submit").removeClass("disabled");
        $(C.options.currentPage).find('input[type="submit"]').removeAttr("disabled");
    }
}

how does your code looks like ?

Shyju
– Shyju

2012-08-15 20:05:05 +00:00
Commented Aug 15, 2012 at 20:05 — Shyju
– Shyju, Commented Aug 15, 2012 at 20:05

Zoltan Toth · Accepted Answer · 2012-08-15 20:05:37Z

7

var i = 0;

$("div").each(function() {
    ...
    i++;
});

alert( i );

answered Aug 15, 2012 at 20:05

Zoltan Toth

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6 Comments

Selvakumar Arumugam Over a year ago

How about $("div").length?? OP says its a function.. his post title and the post is not very clear.

Zoltan Toth Over a year ago

@Vega good point, but the handler might being called multiple times on those divs, so there are 3 div-s but the function run 9 times, for example

Derek Hunziker Over a year ago

@Vega, you can break out of an .each() loop by returning false, or continue by returning true, so .length may not always be accurate.

Selvakumar Arumugam Over a year ago

@DerekHunziker check out his edited post or probably ask OP to show his code to see if doing something like that.. in this answer, there is no return false :P

Zoltan Toth Over a year ago

@Vega in this answer there is a ... that might be ANYTHING what the OP writes :)

|

Phillip Schmidt · Accepted Answer · 2012-08-15 20:07:30Z

5

jQuery handles this for you. Try this:

$("something").each(function(index) {
    alert("Current index is " + index);
});

answered Aug 15, 2012 at 20:07

Phillip Schmidt

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Comments

Marcelo Assis · Accepted Answer · 2012-08-15 20:09:53Z

4

var errors = 0;

(...)

showErrors: function(errorMap, errorList) {                                                                                                             

    if($formEl.find(".aimInput input").length == 2) {     
        // $('.validate').html(errorList[0]['message']);

        $(".aimLocal .submit").removeClass("disabled");                               
        $(C.options.currentPage).find('input[type="submit"]').removeAttr("disabled");

        errors++;  // <--------------- THIS

    }                    
}

Then after, you can use errors anywhere in your code, as it's global.

answered Aug 15, 2012 at 20:09

Marcelo Assis

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Comments

sdespont · Accepted Answer · 2012-08-15 20:07:39Z

0

You can simply count the number of elements

$("#foo > div").length

answered Aug 15, 2012 at 20:07

sdespont

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1 Comment

Phillip Schmidt Over a year ago

I thought that too at first, but then I figured he probably was looking for a running total

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