44 lines
1.2 KiB
Markdown
44 lines
1.2 KiB
Markdown
---
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title: Select
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tags: components,input,beginner
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---
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Renders a `<select>` element that uses a callback function to pass its value to the parent component.
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- Use object destructuring to set defaults for certain attributes of the `<select>` element.
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- Render a `<select>` element with the appropriate attributes and use the `callback` function in the `onChange` event to pass the value of the textarea to the parent.
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- Use the `selected` attribute to define the `defaultValue` of the `<select>` element.
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- Use destructuring on the `values` array to pass an array of `value` and `text` elements.
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```jsx
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const Select = ({ values, callback, disabled = false, readonly = false, selected }) => {
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return (
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<select
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disabled={disabled}
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readOnly={readonly}
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defaultValue={selected}
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onChange={({ target: { value } }) => callback(value)}
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>
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{values.map(([value, text]) => (
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<option value={value}>
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{text}
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</option>
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))}
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</select>
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);
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};
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```
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```jsx
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const choices = [
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['grapefruit', 'Grapefruit'],
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['lime', 'Lime'],
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['coconut', 'Coconut'],
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['mango', 'Mango']
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];
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ReactDOM.render(
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<Select values={choices} selected="lime" callback={val => console.log(val)} />,
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document.getElementById('root')
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);
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```
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