API / Apache FreeMarker Interview questions

What are the types of loops available in FreeMarker?

The main looping construct is <#list sequence as item> ... </#list>, which iterates a sequence or the values of a hash.

<#list products as p>
  ${p?index + 1}. ${p.name} - ${p.price?string.currency}
</#list>

Inside the loop body FreeMarker exposes loop variables such as p?index (or the older p_index form) for the position and p?has_next for whether more items follow, which is useful for printing separators. A hash can be looped the same way after converting it with ?keys or ?values, and the <#items as item> nested form can be used inside <#list sequence> when a separate <#sep> block is needed between items.

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Which loop variable tells you whether more items remain in a #list loop??more

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?continue

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?has_next

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?remaining

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What does <#list products as p> iterate over?Each element of the products sequence, binding it to p

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Nothing - it requires a #foreach directive instead

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The keys of the products hash only

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Only the first element of products

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What is the purpose of interpolation (${...}) in FreeMarker? List the comparison operators supported in FreeMarker? What are the main use cases of FreeMarker? What are the types in FreeMarker's data model? How do you use the #assign directive? Describe the built-ins available in FreeMarker? How do you access static Java members (static methods, fields, and enum constants) from a FreeMarker template? What is Apache FreeMarker? What is the purpose of the FreeMarker Configuration object? What is the difference between FreeMarker's #switch/#case and a chain of #if/#elseif directives? What is the purpose of the <#if> directive? What are the types of loops available in FreeMarker? What is the difference between #assign and #local? How do you apply default values for missing variables in FreeMarker? Why doesn't FreeMarker allow templates unrestricted access to Java reflection and side-effecting method calls? What is the purpose of the incompatible_improvements setting? Define directive in FreeMarker? Which is generally the better choice for a new project today, FreeMarker or Velocity, and why? What is a FreeMarker template? What is the purpose of the #include directive?

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