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JSX and conditional

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Chetan Nada answered on February 28, 2020 Popularity 10/10 Helpfulness 2/10

answer JSX and conditional

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related JSX Conditionals: &&

related react conditionals

related Conditional tags JSX

JSX and conditional

Comment

// JSX and conditional
// In JSX, && is commonly used to render an element based on a boolean condition. && works best in conditionals that will sometimes do an action, but other times do nothing at all.

// If the expression on the left of the && evaluates as true, then the JSX on the right of the && will be rendered. If the first expression is false, however, then the JSX to the right of the && will be ignored and not rendered.
// All of the list items will display if
// baby is false and age is above 25
const tasty = (
  <ul>
    <li>Applesauce</li>
    { !baby && <li>Pizza</li> }
    { age > 15 && <li>Brussels Sprouts</li> }
    { age > 20 && <li>Oysters</li> }
    { age > 25 && <li>Grappa</li> }
  </ul>
);

Popularity 10/10 Helpfulness 2/10 Language javascript

Source: Grepper

Tags: conditional javascript jsx

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Contributed on Oct 25 2022

Chetan Nada

0 Answers Avg Quality 2/10

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add conditional attribute jsx react

Comment

return (
 <Button {...(condition ? {className: 'btn btn-primary'} : {})} />
);

Popularity 10/10 Helpfulness 5/10 Language javascript

Source: Grepper

Tags: add

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Contributed on Aug 20 2022

Marwen Labidi

0 Answers Avg Quality 2/10

conditional jsx property

Comment

render() {
  return (
    <a className="navbar-brand" {... url ? {href: url} : {}}>Logo</a>
  )
}

Popularity 10/10 Helpfulness 4/10 Language javascript

Source: stackoverflow.com

Tags: conditional cond

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Contributed on Feb 28 2020

Angry Aardvark

0 Answers Avg Quality 2/10

JSX Conditionals: &&

Comment

/*
&& works best in conditionals that will sometimes do an action, but other times do 
NOTHING at all.
*/

const tasty = (
  <ul>
    <li>Applesauce</li>
    { !baby && <li>Pizza</li> }
    { age > 15 && <li>Brussels Sprouts</li> }
    { age > 20 && <li>Oysters</li> }
    { age > 25 && <li>Grappa</li> }
  </ul>
);

/*
If the expression on the left of the && evaluates as true, then the JSX on the 
right of the && will be rendered. If the first expression is false, however, then 
the JSX to the right of the && will be ignored and not rendered.
*/

Popularity 10/10 Helpfulness 3/10 Language javascript

Source: Grepper

Tags: javascript j

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Contributed on Jun 11 2022

M Hassan khan

0 Answers Avg Quality 2/10

react conditionals

Comment

<Fragment>
  {showMyComponent
    ? <MyComponent />
    : <OtherComponent />}
</Fragment>

Popularity 10/10 Helpfulness 3/10 Language whatever

Source: devhints.io

Tags: whatever whateve

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Contributed on Nov 17 2022

Cameron Reaney

0 Answers Avg Quality 2/10

Conditional tags JSX

Comment

You can use :

<input type="checkbox" checked={this.props.checked} />
OR

Remove single quotes

From :

todoInput = '<input type="checkbox" checked />';
Like this :

todoInput = <input type="checkbox" checked />;
OR

Conditional tags :

this.props.checked ? <CompA /> : <CompB />;

Popularity 7/10 Helpfulness 1/10 Language javascript

Source: Grepper

Tags: conditional javascript

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Contributed on Jul 28 2023

Hiago Schneider

0 Answers Avg Quality 2/10

JSX and conditional

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