Initialize a slice of structs | Discord Gophers | Page 1

slender ore Apr 11, 2023, 4:05 PM

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Hi All. How can I initialize a slice of structs?
Basically I am looping over a grouped object, I want to push some stats to a new array of objects so the eventual form is :
[
{quantity: int, product: string, tags: []string}
{quantity: int, product: string, tags: []string}
{quantity: int, product: string, tags: []string}
]

sick solar Apr 11, 2023, 4:11 PM

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Not sure what you mean.
If your struct is

type Something struct {
  Quantity int
  Product string
  Tags []string
}

You can simply do

var YourSlice = []Something{
  {Quantity: 1, Product: "pineapple pizza", Tags: []string{"Ew"}},
}

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Or

var YourSlice = make([]Something, 5)

slender ore Apr 11, 2023, 4:13 PM

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i don't know what the cap or len will be

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and i don't want to initialise it with any value

sick solar Apr 11, 2023, 4:13 PM

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So initialize with size 0 and append

slender ore Apr 11, 2023, 4:13 PM

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I come from a JS background so struggling a little to grasp the difference

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Ah i can do that?

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cool

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ill test thanks

sick solar Apr 11, 2023, 4:15 PM

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did you do the go tour? https://go.dev/tour/

slender ore Apr 11, 2023, 4:23 PM

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ive seen that, yeah i started it a few weeks ago.
But today i just thought screw it and to just try and build something

sick solar Apr 11, 2023, 4:23 PM

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👍

slender ore Apr 14, 2023, 8:32 AM

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Hey. Are you based in Europe or US ?
Im working on this little script / program and would love frequent feedback and I also have frequent questions if you have time for them 🙂

#Initialize a slice of structs