将数组元素从字符串转换为整数

use*_*039 -3 ruby

我有这个字符串:

["1","2","3","4"] 
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我需要把它变成这样的数组:

[1,2,3,4]
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有任何想法吗?

and*_*ars 5

x = ["1","2","3","4"] 
x.map(&:to_i)
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