6

I have created a custom block successfully and just want to call java script alert function on the block. I have created a .js file .The issue is how to call the function declared in the javascript throgh array render in build function of the BLOCK PHP

Ankur Garg
  • 61
  • 1
  • 2
  • 3
    Welcome to Stack Overflow! Please [edit] your question to show [the code you have so far](http://whathaveyoutried.com). You should include at least an outline (but preferably a [mcve]) of the code that you are having problems with, then we can try to help with the specific problem. You should also read [ask]. – Toby Speight Feb 14 '18 at 12:04

3 Answers3

7

Please elaborate the question. As per my understanding try this one. Reference

Attaching js to a render array of a Block Plugin

To give another example of attaching a library to a render array, If you are building a block plugin in your module, you can attach the libraries to the render array in the build() function of your class extending the BlockBase class (as of Drupal 8 beta 6).

return [
  '#theme' => 'your_module_theme_id',
  '#someVariable' => $some_variable,
  '#attached' => array(
    'library' => array(
      'your_module/library_name',
    ),
  ),
];
user3575353
  • 397
  • 1
  • 8
4

You can attach a library to a Block in a twig file:
1) supposing the block name is: block--foobar.html.twig
2) and you created a library in THEME.libraries.yml file called: contact-js
3) => you can attach the library to the Block by calling this in block--foobar.html.twig :
{{ attach_library('THEME/contact-js') }}

Nysso
  • 415
  • 4
  • 6
1

You need to include the js file first in moduleName.libraries.yml. Then you can run, the alert function will work.

Ryan M
  • 18,333
  • 31
  • 67
  • 74
manikandan k
  • 82
  • 2