Explain some jQuery code [closed]

Question

Closed. This question needs to be more focused. It is not currently accepting answers.

Want to improve this question? Guide the asker to update the question so it focuses on a single, specific problem. Narrowing the question will help others answer the question concisely. You may edit the question if you feel you can improve it yourself. If edited, the question will be reviewed and might be reopened.

Closed last year.

Improve this question

What is below jQuery code performing ?

    inputMapVar.each(function(index){              
      $(this).prev().removeClass(MISSING); 
    });

For reference, $.each(), $.prev(), $.removeClass().

Sampson
– Sampson

2011-05-18 15:47:48 +00:00
Commented May 18, 2011 at 15:47 — Sampson
– Sampson, Commented May 18, 2011 at 15:47

Richard Marskell - Drackir · Accepted Answer · 2011-05-18 15:46:19Z

5

This code is looping through (.each()) the elements of inputMapVar and getting the element before each one (.prev()) and then removing the class from that element (.removeClass()) with the class name to remove being the value of the variable MISSING.

Edit Just for the sake of clarity, $(this) gets the current element in the loop in this case.

answered May 18, 2011 at 15:46

Richard Marskell - Drackir

13.4k3 gold badges37 silver badges55 bronze badges

Sign up to request clarification or add additional context in comments.

Comments

Mutt · Accepted Answer · 2011-05-18 15:47:36Z

3

Looping through the inputMapVar collection, finding the previous element in the DOM, then removing the CSS class stored in the MISSING variable

answered May 18, 2011 at 15:47

Mutt

9356 silver badges9 bronze badges

Comments

Dave Swersky · Accepted Answer · 2011-05-18 15:47:15Z

1

That code would iterate over all the CSS classes applied to the DOM object represented by this and remove the ones called "MISSING". I believe there's a syntax problem, however- the MISSING should be surrounded by quotes, as I believe removeClass takes a string subtype.

answered May 18, 2011 at 15:47

Dave Swersky

34.8k9 gold badges83 silver badges120 bronze badges

Comments

Shamoon · Accepted Answer · 2011-05-18 15:46:34Z

0

Nothing.... if "MISSING" were in quotes, it would remove the CSS Class ".missing" from each of the previous elements that match whatever inputMapVar is.

answered May 18, 2011 at 15:46

Shamoon

43.9k105 gold badges337 silver badges637 bronze badges

1 Comment

Nilloc Over a year ago

MISSING may be defined elsewhere in the code, try looking for 'var MISSING'.

Rudi Visser · Accepted Answer · 2011-05-18 15:47:10Z

0

For each element in the array inputMapVar, run the function with parameter index.

The callback function ran on each element will get the element preceding the element within the array, and remove the class.

MISSING must (or should) be a variable containing the class name.

answered May 18, 2011 at 15:47

Rudi Visser

22.1k6 gold badges74 silver badges97 bronze badges

Collectives™ on Stack Overflow

Explain some jQuery code [closed]

5 Answers 5

Comments

Comments

Comments

1 Comment

Comments

Hot Network Questions

Collectives™ on Stack Overflow

5 Answers 5

Comments

Comments

Comments

1 Comment

Comments

Related