At what point will the browser display changes made to css using jQuery?

Question

At what point will the browser display changes made to css using jQuery?

When I run my JavaScript code in Firebug, it looks like this:

 tr=$(this).parent('tr');
 tr.find('.img-delete').css('display','block');

However, I am unable to see the change reflected on the browser. Is there a way to make it appear?

Update:

Initially, I was not aware that the change should be visible immediately after it is made. My user interface elements are located within a thickbox, and although I was able to detect events on these elements and adjust the CSS accordingly, the changes were still not showing up. This has left me wondering why my adjustments are not taking effect.

jquery css

Answer 1

Answer №1

When dealing with an event on an element within a table-cell, I recommend using the following code (as mentioned in the comments of your question):

$(this).closest('tr').find('.img-delete').show();

Check out this JS Fiddle demo/proof-of-concept.

I have replaced parent() with closest(), as parent() only considers the immediate parent and does not traverse up the DOM tree like closest(). Since the direct parent of the input tag is not and cannot be the tr element according to valid HTML, using parent() would not yield the desired result.

The reason for choosing closest() over parents() is that closest() stops at the first matching element, providing a single result, while parents() continues searching all ancestor elements potentially returning multiple results in an array.

For targeting a single element, it's best to use closest().

Here are some helpful references:

Answer 2

When dealing with an event on an element within a table-cell, I recommend using the following code (as mentioned in the comments of your question):

$(this).closest('tr').find('.img-delete').show();

Check out this JS Fiddle demo/proof-of-concept.

I have replaced parent() with closest(), as parent() only considers the immediate parent and does not traverse up the DOM tree like closest(). Since the direct parent of the input tag is not and cannot be the tr element according to valid HTML, using parent() would not yield the desired result.

The reason for choosing closest() over parents() is that closest() stops at the first matching element, providing a single result, while parents() continues searching all ancestor elements potentially returning multiple results in an array.

For targeting a single element, it's best to use closest().

Here are some helpful references:

Answer 3

Answer №2

Have you tested this code?

 $('tr').find('.img-delete').css('display','block');

Or, you could try:

  tr.find('.img-delete').show();

If it's a block element, the display will be set to block.

What happens when you run $('tr').find('.img-delete') in FireBug? Does it return anything? What properties does it have? These are important things to consider.

Also, what type of element has the .img-delete class? Is it classified as 'block'? It might be an img tag, but there may be other possibilities. Refer to this page for guidance on choosing the appropriate display style: http://www.w3schools.com/cssref/pr_class_display.asp

Answer 4

Have you tested this code?

 $('tr').find('.img-delete').css('display','block');

Or, you could try:

  tr.find('.img-delete').show();

If it's a block element, the display will be set to block.

What happens when you run $('tr').find('.img-delete') in FireBug? Does it return anything? What properties does it have? These are important things to consider.

Also, what type of element has the .img-delete class? Is it classified as 'block'? It might be an img tag, but there may be other possibilities. Refer to this page for guidance on choosing the appropriate display style: http://www.w3schools.com/cssref/pr_class_display.asp

Answer 5

Answer №3

Consider utilizing .closest (my personal choice) or .parents in place of .parent. The rationale behind this suggestion is that while .parent solely targets the direct parent, the alternatives I proposed allow for traversing multiple levels up the DOM tree.

Answer 6

Consider utilizing .closest (my personal choice) or .parents in place of .parent. The rationale behind this suggestion is that while .parent solely targets the direct parent, the alternatives I proposed allow for traversing multiple levels up the DOM tree.

At what point will the browser display changes made to css using jQuery?

Answer №1

Answer №2

Answer №3

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