javascript - Cannot read property 'attr' of undefined - Stack Overflow

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Why am I getting this error on my code?

Cannot read property 'attr' of undefined`

$(document).ready(function() { 
    var currentPage = jQuery.url.attr("path");
    $(':input').blur(function () {
        if ($(this).val().length > 0) {
            pageTracker._trackEvent("Form: " + currentPage, "input_exit", $(this).attr('name'));
        } 
    });
});

My fiddle: /

Why am I getting this error on my code?

Cannot read property 'attr' of undefined`

$(document).ready(function() { 
    var currentPage = jQuery.url.attr("path");
    $(':input').blur(function () {
        if ($(this).val().length > 0) {
            pageTracker._trackEvent("Form: " + currentPage, "input_exit", $(this).attr('name'));
        } 
    });
});

My fiddle: https://jsfiddle/4ocdcqrf/

• javascript
• jquery

Share Improve this question Follow edited Feb 19, 2016 at 14:41 Rory McCrossan 338k4141 gold badges320320 silver badges351351 bronze badges asked Feb 19, 2016 at 14:37 michaelmcgurkmichaelmcgurk 6,5352525 gold badges101101 silver badges197197 bronze badges 6

• 2 jQuery.url is undefined if you do a console log(jQuery.url) you will see it's undefined – Radu Commented Feb 19, 2016 at 14:39
• What is jQuery.url? Are you using a 3rd party library as that's not a a standard property. What value are you expecting it to return. By default it will return undefined, hence calling attr() on that is throwing the error. – Rory McCrossan Commented Feb 19, 2016 at 14:40
• I don't think .attr is one of $.url's methods. – Steve Perry Commented Feb 19, 2016 at 14:40
• Thanks for the feedback/ I'm using this tutorial here: distilled/blog/conversion-rate-optimization/… – michaelmcgurk Commented Feb 19, 2016 at 14:41
• 1 I believe the OP needs to make use of this library: github./allmarkedup/purl – shrmn Commented Feb 19, 2016 at 14:43

 |  Show 1 more ment

2 Answers 2

Sorted by: Reset to default 1

If you do a console log on jQuery.url, you will see this is has a value of undefined.

you will needd to use location.pathname instead of jQuery.url.

Please take a look here for proper understanding

The issue is that jQuery.url is undefined. I'm not sure where you even got the idea that this property should exist, since it's not part of jQuery. To get the actual current page, you can simply get the native property

window.location.href

Why am I getting this error on my code?

Cannot read property 'attr' of undefined`

$(document).ready(function() { 
    var currentPage = jQuery.url.attr("path");
    $(':input').blur(function () {
        if ($(this).val().length > 0) {
            pageTracker._trackEvent("Form: " + currentPage, "input_exit", $(this).attr('name'));
        } 
    });
});

My fiddle: /

Why am I getting this error on my code?

Cannot read property 'attr' of undefined`

$(document).ready(function() { 
    var currentPage = jQuery.url.attr("path");
    $(':input').blur(function () {
        if ($(this).val().length > 0) {
            pageTracker._trackEvent("Form: " + currentPage, "input_exit", $(this).attr('name'));
        } 
    });
});

My fiddle: https://jsfiddle/4ocdcqrf/

• javascript
• jquery

Share Improve this question Follow edited Feb 19, 2016 at 14:41 Rory McCrossan 338k4141 gold badges320320 silver badges351351 bronze badges asked Feb 19, 2016 at 14:37 michaelmcgurkmichaelmcgurk 6,5352525 gold badges101101 silver badges197197 bronze badges 6

• 2 jQuery.url is undefined if you do a console log(jQuery.url) you will see it's undefined – Radu Commented Feb 19, 2016 at 14:39
• What is jQuery.url? Are you using a 3rd party library as that's not a a standard property. What value are you expecting it to return. By default it will return undefined, hence calling attr() on that is throwing the error. – Rory McCrossan Commented Feb 19, 2016 at 14:40
• I don't think .attr is one of $.url's methods. – Steve Perry Commented Feb 19, 2016 at 14:40
• Thanks for the feedback/ I'm using this tutorial here: distilled/blog/conversion-rate-optimization/… – michaelmcgurk Commented Feb 19, 2016 at 14:41
• 1 I believe the OP needs to make use of this library: github./allmarkedup/purl – shrmn Commented Feb 19, 2016 at 14:43

 |  Show 1 more ment

2 Answers 2

Sorted by: Reset to default 1

If you do a console log on jQuery.url, you will see this is has a value of undefined.

you will needd to use location.pathname instead of jQuery.url.

Please take a look here for proper understanding

The issue is that jQuery.url is undefined. I'm not sure where you even got the idea that this property should exist, since it's not part of jQuery. To get the actual current page, you can simply get the native property

window.location.href

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