How to add an icon to the options in react-select?

Question

Attempts to add an icon to option in react-select. I imported svg icons from the files england.svg, germany.svg. I created customSingleValue and put it in

<Select components={{ SingleValue: customSingleValue }} />

Labels are displayed, but the icons are not.

Demo here: https://stackblitz.com/edit/react-q19sor

import Select from 'react-select'
import { ReactComponent as IconFlagEngland } from "./england.svg";
import { ReactComponent as IconFlagGermany } from "./germany.svg";

const options = [
  { value: 'England', label: 'England', icon: <IconFlagEngland/> },
  { value: 'Germany', label: 'Germany', icon: <IconFlagGermany/> }
]

const customSingleValue = ({ options }) => (
    <div className="input-select">
        <div className="input-select__single-value">
            { options.icon && <span className="input-select__icon">{ options.icon }</span> }
            <span>{ options.label }</span>
        </div>
    </div>
);

class App extends Component {
  constructor() {
    super();
    this.state = {
      name: 'React'
    };
  }

  render() {
    return (
       <Select
            defaultValue={ options [0] }
            options={ options }
            /*styles={ selectCustomStyles }*/
            /*onChange={ changeSelectHandler }*/
            components={ {SingleValue: customSingleValue } }
        />
    );
  }
}

render(<App />, document.getElementById('root'));

Answer 1

I found a workaround how to solve it. My technique is similar to @canda:

import React, { Component } from "react";
import { render } from "react-dom";
import "./style.css";
import Select, { components } from "react-select";

const options = [
  { value: "England", label: "England", icon: "england.svg" },
  { value: "Germany", label: "Germany", icon: "germany.svg" }
];

const { Option } = components;
const IconOption = props => (
  <Option {...props}>
    <img
      src={require('./' + props.data.icon)}
      style={{ width: 36 }}
      alt={props.data.label}
    />
    {props.data.label}
  </Option>
);

class App extends Component {
  constructor() {
    super();
    this.state = {
      name: "React"
    };
  }

  render() {
    return (
      <Select
        defaultValue={options[0]}
        options={options}
        components={{ Option: IconOption }}
      />
    );
  }
}

render(<App />, document.getElementById("root"));

Answer 2

Just in case anybody want to use icons with multiple selection in react-select, below code can be used:

const { MultiValue } = components;

const MultiValueOption = (props) => {
  return (
    <MultiValue {...props}>
      <img
        src={require("./" + props.data.icon)}
        style={{ width: 36 }}
        alt={props.data.label}
      />
      <span>{props.data.value}</span>
    </MultiValue>
  );
};

<Select
  options={options}
  components={{
    Option: IconOption,
    MultiValue: MultiValueOption,
  }}
  isMulti={true}
></Select>;

Answer 3

I think the problem is that you are not actually importing the SVGs. If you try to use <IconFlagGermany/> directly in your code anywhere, it will crash hard with this message :

Element type is invalid: expected a string (for built-in components) or a class/function (for composite components) but got: undefined. You likely forgot to export your component from the file it's defined in, or you might have mixed up default and named imports.

It is currently not crashing because I think your customSingleValue function is not working as you intend it to (have not looked into it, but pretty sure it is bugged).

If you want to be able to import SVGs in this manner, you need to setup an appropriate loader in Webpack (or your chosen bundler). Maybe something like this : https://www.npmjs.com/package/react-svg-loader

However, another solution is to properly export your SVGs as components, like in this demo forked from your code : https://stackblitz.com/edit/react-5gvytm