/Html/Thymeleaf optional fragment parameter

Thymeleaf optional fragment parameter


The best way to allow optional parameter for a fragment is to declare them with "th:with" and describe them with meaningful default values.

So, you define explicit your mandatory and your optional values in the declaration tag of your fragment.

Here is simple example, with 1 mandatory and 2 optional parameters:

<div th:fragment="printGreetings (name)" th:with="title=${title} ?: 'Mr.', greeting=${greeting} ?: 'Hello'">
    <span th:text="${greeting}">Hello</span>
    <span th:text="${title}">Mr.</span>
    <span th:text="${name}">John Doe</span>
</div>

You can then call it like the following:

<div th:replace="fragments :: printGreetings (name='daniel')">
   Hello Mr. Daniel
</div>
<div th:replace="fragments :: printGreetings (name='Lea', title='Ms.')>
   Hello Ms. Lea
</div>
<div th:replace="fragments :: printGreetings (name='Lea', title='Ms.', greeting='Hi')>
   Hi Ms. Lea
</div>

(Please note that all values inside the tags are replaced by the dynamic ones. It's just for better reading.)

Source: stackoverflow.com

Similar codes

18 votes143 views2 answers
Autofill visual code html code
Html
0 vote139 views1 answer
Textarea ckeditor
Html
10 votes145 views1 answer
Turn of sujestion in input
Html
0 vote154 views1 answer
Html element hover helptext
Html
1 vote137 views1 answer
A line in the middle of atom editor
Html
4 votes128 views4 answers
Html base
Html
1 vote97 views2 answers
Html text border
Html
1 vote157 views1 answer
Summernote
Html
0 vote133 views1 answer
React button style
Html
1 vote159 views1 answer
Allow xlsx and csv files rails file field accept values
Html