freemarker assign to list

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Freemarker assign value to variable

I'm having trouble while trying to assign value to a variable using Freemarker.

This is the error message: Encountered ".", but was expecting one of: STRING_LITERAL RAW_STRING ID Can anyone help me with this? Thank you.

• Off topic, but you don't need #if + #list for such situations, just use a range with exclusive end, like <#list 0..!num as i> . (Requires FreeMarker 2.3.21.) –  ddekany Jan 15, 2015 at 22:38

You can only write top-level variables in a FreeMarker template. Also you can't assign to a variable with dynamically constructed name, except with an ?interpret hack: <@"<#assign abc${i?c} = abc${i?c}?reaplce('test', "Test")>"?interpret /> . Obviously that's horrid... BTW, what's the use case here? Why do you need to assign to dynamically constructed variable names?

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Loop variable built-ins

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is_even_item

Is_odd_item, item_parity, item_parity_cap.

Loop variable built-ins only exists since FreeMarker 2.3.23.

These built-ins you can only use with the loop variable of the list and items directives (and of the deprecated foreach directive). Some explanation of that follows ( loopVar ?index returns the 0-based index in the listable value we iterate through):

When the list directive doesn't specify the loop variable, these built-ins are used with the loop variable of the items directive:

Loop variable built-ins only use the name of loop variable, so that they can identify the related ongoing iteration. They don't read the value of the loop variable. Hence, this is a parsing error:

This built-in is available since FreeMarker 2.3.23.

Returns the 1-based index where the iteration (which is identified by the loop variable name) currently stands.

For the 0-based index, use the index built-in .

Tells if the item where the iteration (which is identified by the loop variable name) currently stands is not the last item.

For separating items with commas and such, use <#sep> separator </#sep> instead of <#if var ?has_next> separator </#if> , as it's more readable. (Furthermore the </#sep> can be often omitted, like in <#list ... as var > ... ${ var } ... <#sep> separator </#list> )

If you need the inverse of this built-in, use var ?is_last instead of ! var ?has_next , because it's more readable.

Returns the 0-based index where the iteration (which is identified by the loop variable name) currently stands.

For the 1-based index, use the counter built-in .

Tells if the item where the iteration (which is identified by the loop variable name) currently stands has an even 1-based index.

To make tables with alternating row colors and such, use var ?item_parity or var ?item_cycle(...) instead.

Tells if the item where the iteration (which is identified by the loop variable name) currently stands is the first item.

Tells if the item where the iteration (which is identified by the loop variable name) currently stands is the last item.

If you need the inverse of this built-in, use var ?has_next instead of ! var ?is_last , because it's more readable.

Tells if the item where the iteration (which is identified by the loop variable name) currently stands has an odd 1-based index.

This is a more generic version of the item_parity built-in , where you can specify what value to use instead of "odd" and "even" . It also allows more than 2 values that it will cycle through.

Some details:

The number of arguments must be at least 1, and has no upper limit.

The type of the arguments can be anything, they doesn't have to be strings.

Use the item_parity built-in instead if the values you need are "odd" and "even" .

Returns "odd" or "even" string value, depending on the parity of the 1-based index where the iteration (which is identified by the loop variable name) currently stands. This is commonly used for alternating color for table rows:

Use the item_parity_cap built-in for capitalized "Odd" and "Even" . Use the item_cycle built-in to specify custom values, or more then two values.

Returns "Odd" or "Even" string value (note the capitalization), depending on the parity of the 1-based index where the iteration (which is identified by the loop variable name) currently stands.

Use the item_parity built-in for lower case "odd" and "even" .

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Last generated: 2023-05-11 21:11:51 GMT , for Freemarker 2.3.32

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