What is the best way to choose the selector based on its method?

Question

What is the best way to choose the selector based on its method?

I have a challenge where I need to update the text within '#foo #three' by using 'this' to access the text of the div#one

The desired output would be:

cat
dog
cat

This is how the HTML looks:

<div id="foo">
 <div id="one">cat</div>
 <div id="two">dog</div>
 <div id="three">mouse</div>
</div>

And this is the JavaScript code snippet:

$("#foo #three").text($(this).parent().children().first().text());

I am looking for a way to make this code dynamic.

You can also find this example on JSFiddle: http://jsfiddle.net/Kodam/s466a31q/

javascript jquery css

Answer 1

Answer №1

In case you are not attempting to achieve this in a dynamic way, the solution can be as straightforward as:

$('#three').text($('#one').text());

Answer 2

In case you are not attempting to achieve this in a dynamic way, the solution can be as straightforward as:

$('#three').text($('#one').text());

Answer 3

Answer №2

$("#three").text($('#foo').children().first().text());

Note: To efficiently reference the match, it is advisable to utilize the each method:

$("#foo #three").each(function(){ // only targets #three
  $(this).text($(this).parent().children().first().text());  
})

Answer 4

$("#three").text($('#foo').children().first().text());

Note: To efficiently reference the match, it is advisable to utilize the each method:

$("#foo #three").each(function(){ // only targets #three
  $(this).text($(this).parent().children().first().text());  
})

Answer 5

Answer №3

Even though this method involves a workaround, it proves to be effective:

$jSelect = $("#foo #three");
$jSelect.text( function(){
var jParts = $jSelect.selector.split(" ");
  return $(jParts[0]).find("div:first").text();
});

Check out the demo here

However, I do not recommend using it due to the deprecation of .selector in jQuery 1.7. It is only maintained for compatibility with the live() function in the jQuery Migrate plugin.
For more information, visit: http://api.jquery.com/selector/

Update: Here's a similar approach that avoids using .selector:

jSelect = ("#foo #three");
$(jSelect).text( function(){
 var jParts = jSelect.split(" ");
 return $(jParts[0]).find("div:first").text();
});

View updated version on Fiddle

Answer 6

Even though this method involves a workaround, it proves to be effective:

$jSelect = $("#foo #three");
$jSelect.text( function(){
var jParts = $jSelect.selector.split(" ");
  return $(jParts[0]).find("div:first").text();
});

Check out the demo here

However, I do not recommend using it due to the deprecation of .selector in jQuery 1.7. It is only maintained for compatibility with the live() function in the jQuery Migrate plugin.
For more information, visit: http://api.jquery.com/selector/

Update: Here's a similar approach that avoids using .selector:

jSelect = ("#foo #three");
$(jSelect).text( function(){
 var jParts = jSelect.split(" ");
 return $(jParts[0]).find("div:first").text();
});

View updated version on Fiddle

Answer 7

Answer №4

If you are adamant about utilizing this, one way to do it is as follows:

Check out this Fiddle Example

Essentially, because this only functions within a function context, you can create a function that returns a string and place it within the .text().

$(function () {
    $("#foo #three").text(function () {
        return $(this).parent().children().first().text();
    });
});

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<div id="foo">
    <div id="one">cat</div>
    <div id="two">dog</div>
    <div id="three">mouse</div>
</div>

Answer 8

If you are adamant about utilizing this, one way to do it is as follows:

Check out this Fiddle Example

Essentially, because this only functions within a function context, you can create a function that returns a string and place it within the .text().

$(function () {
    $("#foo #three").text(function () {
        return $(this).parent().children().first().text();
    });
});

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<div id="foo">
    <div id="one">cat</div>
    <div id="two">dog</div>
    <div id="three">mouse</div>
</div>

What is the best way to choose the selector based on its method?

Answer №1

Answer №2

Answer №3

Answer №4

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