An Adobe Commerce Developer is adding a new page layout to the theme directory within a custom theme.
Which file needs to be created to register the new page layout?
An Adobe Commerce developer has found following code:

After compiling the .less file into a .ess file, what will be the results of the code above?
An Adobe Commerce developer was asked to customize a JavaScript component which is written as a function. How would the developer extend the native JavaScript function?
An Adobe Commerce developer is working on a custom knockout Ul component and they need to add the text Happy Birthday. to be translated inside an .html template.
How would the developer add the text?
An Adobe Commerce developer needs to improve the time of first render of the pages. How would the developer achieve this?
Adobe commerce fronted developer needs to speed up the cloud environment deployment process with predefined theme languages for reducing the number of unnecessary themes files.
Which place developer should add language codes?