How to dynamically add properties based on conditions in React components?
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P粉665427988 2023-08-20 14:54:00
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<p>Is there a way to add properties to a React component only when certain conditions are met? </p> <p>I need to add required and readOnly attributes to the form element based on conditions in the post-rendered Ajax call, but I don't know how to solve this problem because <code>readOnly="false"</code> is completely different from Omitting attributes is different. </p> <p>The example below should illustrate what I want, but it doesn't work. </p> <blockquote> <p>(Parse error: unexpected identifier)</p> </blockquote> <pre class="brush:js;toolbar:false;">function MyInput({isRequired}) { return <input classname="foo" {isRequired ? "required" : ""} /> } </pre> <p><br /></p>
P粉665427988
P粉665427988

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P粉545218185

juandemarco's answer is usually correct, but there is another option here.

Construct an object to your liking:

var inputProps = {
  value: 'foo',
  onChange: this.handleChange
};

if (condition) {
  inputProps.disabled = true;
}

Use spread for rendering, and you can also choose to pass other props.

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