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How Can I Set Default Values in Go Structs?

Susan Sarandon
Release: 2024-12-25 08:41:09
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How Can I Set Default Values in Go Structs?

Setting Default Values in Go Structs

This question explores various techniques for setting default values in Go structs. The issue stems from the fact that Go structs do not support default values natively.

One possible solution involves creating a separate constructor function. For example, consider the following struct:

type Something struct {
    Text string
    DefaultText string
}
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We can then define a constructor function to create new instances of the struct with desired default values:

func NewSomething(text string) Something {
   something := Something{}
   something.Text = text
   something.DefaultText = "default text"
   return something
}
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By calling NewSomething with the desired text, we can create an instance with appropriate default values for DefaultText. This approach offers flexibility in setting default values based on the constructor function's arguments, allowing for more complex scenarios.

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