Answer / Arpana Bajpai

Form rebuild is a function that completely regenerates a Drupal form and all its dependencies. It's useful when the internal state of a form needs to be reset, or when there are changes in the form structure.

Explain the concept of “nodes” in a drupal system.

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How to use the contextual filter?

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Explain the database system in drupal.

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What is drupal block?

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Is drupal free?

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Different ways of adding js. How to add js in hook_form?

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Is it possible to disable a core required modules through drupal admin?

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What is a block module?

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What are the software requirements for drupal installation?

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What are the regions in drupal?

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