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development

Though Magento can work in 3 modes — default, developer and production — after installation Magento 2 is in a default mode. It is aimed at users who are unaware of the possibility of changing the Magento 2 mode. Besides, it is between the developer and production state.

So, let's see what exactly are Magento modules and how they differ.

What are modes in Magento 2?

Default mode is not used for the development and production environment. When in default mode, Magento 2:

    • caches static files:
    • does not display errors in the clipboard (on the screen), but in the log file (magento2_folder / var / log).

Developer mode is ideal for developers. When in developer mode Magento 2:

  • does not cache static files;
  • displays a detailed error log on the screen;
  • automatically compiles the code;
  • allows advanced code debugging.
  • works slowly.

Production mode is used in the production environment. When in production mode, Magento 2:

  • caches all view-files;
  • doesn't change image size, when generating pages;
  • stores all errors in the log file;
  • allows integrating JavaScript into a bundle:
  • works fast.

How to show mode in Magento 2?

Run this CLI command:

php bin/magento deploy:mode:show

And get the following message:

Current application mode: developer

How to change modes in Magento 2?

Run the following CLI command:

php bin/magento deploy:mode:set {mode}

The {mode} parameter is required. You can use these values for it: developer, production or default. In older versions of Magento 2, you cannot return to the default mode after changing the mode.

Helpful Tip: You can change the MAGE_MODE value to default in the app/etc/env.php file to return Magento 2 to the default mode if tyou cannot do this with the CLI command.

Check the modes on your Magento 2 instances and change them if necessary.