What does [object Object] mean?

The default conversion from an object to string is "[object Object]".

As you are dealing with jQuery objects, you might want to do

alert(whichIsVisible()[0].id);

to print the element’s ID.

As mentioned in the comments, you should use the tools included in browsers like Firefox or Chrome to introspect objects by doing console.log(whichIsVisible()) instead of alert.

Sidenote: IDs should not start with digits.

Related Posts:

  1. How to add an object to an array
  2. Complex JSON nesting of objects and arrays
  3. How do I redirect to another webpage?
  4. jQuery append() vs appendChild()
  5. ReferenceError: $ is not defined
  6. jQuery document.createElement equivalent?
  7. Toggle show/hide on click with jQuery
  8. jQuery .on(‘change’, function() {} not triggering for dynamically created inputs
  9. How to create a jQuery function (a new jQuery method or plugin)?
  10. Failed to load resource: the server responded with a status of 500 (Internal Server Error) in Bind function
  11. Scroll to an element with jQuery
  12. jQuery.click() vs onClick
  13. Scroll to an element with jQuery
  14. Download File Using JavaScript/jQuery
  15. Is there a link to the “latest” jQuery library on Google APIs?
  16. Uncaught TypeError: Cannot read property ‘length’ of undefined
  17. Check if element exists in jQuery
  18. Checking a Url in Jquery/Javascript
  19. Change Background color (css property) using Jquery
  20. jQuery get textarea text
  21. Failed to load resource: net::ERR_FILE_NOT_FOUND loading json.js
  22. Get class name using jQuery
  23. Uncaught TypeError: $.post is not a function
  24. When and why to ‘return false’ in JavaScript?
  25. querySelector vs. getElementById
  26. How to generate a simple popup using jQuery
  27. jQuery animate backgroundColor
  28. Left() function in Javascript or jQuery
  29. Why is “forEach not a function” for this object?
  30. AJAX response error: net::ERR_EMPTY_RESPONSE
  31. XML Parsing Error: no root element found Location in Console FF
  32. Moment js date time comparison
  33. Understanding how data-dismiss attribute works in Bootstrap
  34. Add table row in jQuery
  35. Create table with jQuery – append
  36. When is JavaScript synchronous?
  37. How to reset a form using jQuery with .reset() method
  38. How to convert selected HTML to Json?
  39. How to Open New window on every Click
  40. Jquery Ajax Call, doesn’t call Success or Error
  41. Mismatched anonymous define() module
  42. How to create a stopwatch using JavaScript?
  43. Convert UTC date time to local date time
  44. With jQuery, how do I capitalize the first letter of a text field while the user is still editing that field?
  45. Obtain form input fields using jQuery?
  46. Play an audio file using jQuery when a button is clicked
  47. How to move an element after another element using JS or jquery?
  48. How can I get the last character in a string?
  49. Why is the jquery script not working?
  50. JQuery Datatables : Cannot read property ‘aDataSort’ of undefined
  51. Load image with jQuery and append it to the DOM
  52. Change text on hover, then return to the previous text
  53. Javascript/Jquery Convert string to array
  54. jQuery make global variable
  55. How to send email by using javascript or jquery
  56. How to get current date in jQuery?
  57. Print the contents of a DIV
  58. How to Scroll Down – JQuery
  59. Embedding instagram webpage inside an iframe
  60. Do something if screen width is less than 960 px
  61. Uncaught TypeError: Cannot read property ‘toUpperCase’ of undefined
  62. jQuery remove options from select
  63. Load Image from javascript
  64. Most efficient method to groupby on an array of objects
  65. Reload an iframe with jQuery
  66. is there something like isset of php in javascript/jQuery?
  67. jQuery – Dynamically Create Button and Attach Event Handler
  68. Highlight a word with jQuery
  69. “Uncaught TypeError: a.indexOf is not a function” error when opening new foundation project
  70. Error: TypeError: $(…).dialog is not a function
  71. getContext is not a function
  72. How to change the text of a label?
  73. How to check ‘undefined’ value in jQuery
  74. Data column(s) for axis #0 cannot be of type string in google chart dashboard [duplicate]
  75. navigator.geolocation.getCurrentPosition sometimes works sometimes doesn’t
  76. Jquery Value match Regex
  77. Using “&times” word in html changes to ×
  78. How to check if the URL contains a given string?
  79. How should I initialize jQuery?
  80. How to reload page every 5 seconds?
  81. Fire oninput event with jQuery
  82. What is the non-jQuery equivalent of ‘$(document).ready()’?
  83. Changing the selected option of an HTML Select element
  84. How to scroll to top of page with JavaScript/jQuery?
  85. How to set “style=display:none;” using jQuery’s attr method?
  86. Change the selected value of a drop-down list with jQuery
  87. How to dequeue a script?
  88. Adding JavaScript to a WordPress website
  89. List of JS Events for Widgets?
  90. JQuery not loading
  91. Uncaught ReferenceError: jQuery is not defined – although jQuery is loaded [closed]
  92. Uncaught TypeError: jQuery(…).slider is not a function
  93. Putting custom html/js page into Elementor as it’s own block
  94. How to load Javascript code or functions.php later in a child theme?
  95. Get the ID of a page in Parent combobox in editor
  96. “jQuery Not Defined” Error When Connecting to PayPal
  97. Fade-in Fade-out doesn’t work in WordPress
  98. Can’t Listen to KeyDown in TInyMCE Iframe (jQuery) and Pass it to Parent HTML FORM
  99. Open image gallery on link click
  100. Access jQuery tabs from primary menu while adding/removing class on tab container elements (accessing diff. tabs/tab content via primary menu items)

Leave a Comment