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Javascript – How to define strings in Typescript interface?

I have this array of Projects where stack has multiple strings

const projects: IProject[] = [
    {name: '', description: '', stack: {'php', 'sql'}}
  ]

How will the interface be or what is the best approach?

interface IProject {
  name: string
  description: string
  stack: 
  repo?: string
  url?: string
}

I tried to declare another interface IStack[] but I don’t want another array of key value pairs as it increases my code

stack: [
{name: 'react'}, {name: 'graphql'}
]
Tags:

2

Answers


  1. 0

    If what you want is a fixed set of strings, you can use a union type:

    type Stack = "php" | "sql" | "react";

interface Project {
  stack: Stack[];
}

const project: Project = {stack: ["php", "sql"]};

    Otherwise if you just want an array of random strings, you can use stack: string[]

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  2. 0

    You can use in string array:

    interface IProject {
  name: string
  description: string
  stack: string[]
  repo?: string
  url?: string
}

    and the object is:

    const projects: IProject[] = [
    {name: '', description: '', stack: ['php', 'sql']}
  ]
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