Construct Array from Slices in Go

Question

Given the following:

var positionTitles []string
var positionRelationships []string
var positionInstitutions []string

positionTitles = ["Director" "Provost" "Assistant Provost"]
positionRelationships = ["Tenured Professor" "Lecturer" "Adjunct Professor"]
positionInstitutions = ["UCSC" "UCB" "USC"]

How would I construct an array that looks like such:

Positions :=
 [{
   PositionTitle: "Director",
   PositionRelationships: "Tenured Professor",
   PositionInstitution: "UCSC",
  },
  {
   PositionTitle: "Provost",
   PositionRelationships: "Lecturer",
   PositionInstitution: "UCB",
  },
  {
   PositionTitle: "Assistant Provost",
   PositionRelationships: "Adjunct Professor",
   PositionInstitution: "USC",
  }]

The goal is to iterate over the Positions.

Go Playground I've started: http://play.golang.org/p/za_9U7eHHT

ferhatelmas · Accepted Answer · 2015-12-29 08:57:41Z

2

You can create a type that would hold all the pieces and iterate over the slices such that

type Position struct {
    Title, Relationship, Institution string
}

positions := make([]Position, len(positionTitles))
for i, title := range positionTitles {
    positions[i] = Position{
        Title:        title,
        Relationship: positionRelationships[i],
        Institution:  positionInstitutions[i],
    }
}

However, if you need it only to iterate, you don't need to create a type. See body of the for.

https://play.golang.org/p/1P604WWRGd

answered Dec 29, 2015 at 8:57

ferhatelmas

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Comments

KeylorSanchez · Accepted Answer · 2015-12-29 09:03:56Z

0

I would create a Position struct containing the informations you need :

type Position struct {
PositionTitle         string
PositionRelationships string
PositionInstitution   string
}

and create an array (or slice) of those structs to iterate over them. Here is a working example : http://play.golang.org/p/s02zfeNJ63

answered Dec 29, 2015 at 9:03

KeylorSanchez

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