英文:
Remove certain element from array in Velocity Template Language (VTL)
问题
我想从Velocity模板语言的数组中移除特定元素。在查阅了Apache VTL的文档后，我没有找到合适的方法，所以我在这里寻求帮助。我尝试了以下方法（`.remove()` 似乎不是数组元素的方法）：
#set($linkedWIARRAY = ["ABC-123, DEF-345, GHI-678"])
#set($dummy=$linkedWIARRAY.add("JKL-901"))
#set($dummy = $linkedWIARRAY.remove("DEF-345"))
$linkedWIARRAY
$linkedWIARRAY 返回 [ABC-123, DEF-345, GHI-678, JKL-901]，显示 `remove` 很可能不是数组的方法 ;)
在Stack Overflow上有一个类似的问题，但对我没有帮助：
https://stackoverflow.com/questions/42378967/velocity-template-drop-element-from-array
英文:
I would like to remove a certain element from an array in Velocity Template Language. I did not find any appropriate method looking through the documentation of Apache VTL, that's why I am asking here for help. I have tried following (.remove() doesn't seem to be a method on array items):
#set($linkedWIARRAY = ["ABC-123, DEF-345, GHI-678"])
#set($dummy=$linkedWIARRAY.add("JKL-901"))
#set($dummy = $linkedWIARRAY.remove("DEF-345"))
$linkedWIARRAY
$linkedWIARRAY returns [ABC-123, DEF-345, GHI-678, JKL-901], showing that remove very likely doesn't exist as method on arrays 
There is a similar question on SO, that didn't help me:
https://stackoverflow.com/questions/42378967/velocity-template-drop-element-from-array
答案1
得分: 3
问题出在列表的初始化上。应该是：
#set($linkedWIARRAY = ["ABC-123", "DEF-345", "GHI-678"])
也就是说，每个字符串都应该用双引号括起来，而不是整个字符串。
英文:
The problem lies in the initialization of the list. It should be:
#set($linkedWIARRAY = ["ABC-123", "DEF-345", "GHI-678"])
that is, each string should be enclosed in double quotes, not the whole string.
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