17 lines
352 B
Go
17 lines
352 B
Go
package object
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import "strings"
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// Lower ...
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func Lower(args ...Object) Object {
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if len(args) != 1 {
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return newError("wrong number of arguments. got=%d, want=1",
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len(args))
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}
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if str, ok := args[0].(*String); ok {
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return &String{Value: strings.ToLower(str.Value)}
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}
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return newError("expected `str` argument to `lower` got=%T", args[0])
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}
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