pass an array of objects to a dropdown (select) using typescript

Question

I'm trying to pass this array of objects

options = [
          {label:'React', value: 'react'},
          {label:'ReactNative', value: 'react-native'},
          {label:'JavaScript', value: 'js'},
          {label:'CSS', value: 'css'}        
        ];

to a select component

        <CustomSelect options={options} />

Nothing is taking the curly braces away. I've tried:

         let options: { label: string, value: string}[] = [
           {label:'React', value: 'react'},
           {label:'ReactNative', value: 'react-native'},
           {label:'JavaScript', value: 'js'},
           {label:'CSS', value: 'css'}     
         ];

this is a type array with strings in it.

I've also tried:

    interface Option {
      label: string,
      value: string
    }
    
    let options: Option[] ;
    
    options = [
      {label:'React', value: 'react'},
      {label:'ReactNative', value: 'react-native'},
      {label:'JavaScript', value: 'js'},
      {label:'CSS', value: 'css'}
    
    ];

to create an object with strings in it. My understanding is that I create an interface or a type to create an object? Once I create an object, I need to define the array of strings and I don't know how to do that correctly in a typescript way.

what do you mean by nothing is taking the curly braces away ? I didn't understand what your problem is — Antonio Pantano
– Antonio Pantano, Commented Jan 20, 2022 at 19:31
Your question is unclear. But I notice a typo in your example code. TypeScript types and interfaces should use a semicolon ; to separate properties, not a comma ,. This is part of what helps differentiate them from object values. Example: it should be interface Option { label: string; value: string; } — jered
– jered, Commented Jan 21, 2022 at 8:51

Xabir · Accepted Answer · 2022-05-09 17:15:55Z

3

If I understand correctly from the question, you might need something like the following:

<select>
  <option value="">Select</option>
  {options.map((options) => (
    <option key={options.label} value={options.value}>
      {options.label}
    </option>
  ))}
</select>

If you want to make a custom dropdown component in typescript, this codesandbox might help

https://codesandbox.io/s/determined-rhodes-n6i8lc

answered May 9, 2022 at 17:15

Xabir

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