React, Conditionally send props to Component

const Comp = ({noValue, value}) => (
  <Slider value={value}>
)

Is there any way to not send the value-property based on a condition (noValue)?

So if noValue = true: < Slider />

if noValue = false: < Slider value={value} />

<Slider /> is an external lib and it crashes if I do value={null}

Above answers are good too, just wanted to show some alternate syntax

const Comp = ({noValue, value}) => {
  const props = noValue ? {} : {value: value};
  return <Slider {...props}>
}

React: inline conditionally pass prop to component, You were close with your idea. It turns out that passing undefined for a prop is the same as not including it at all, which will still trigger the� React is smart enough to NOT pass a prop value if the value is falsy. Falsy values are null, undefined, and false. Solution #3: Spread props to child component. In the second example I moved the conditional logic above, and created variable for disabled. Creating too many variables for each prop may be tedious. For example:

You can pass undefined as the value prop if noValue is true.

const Comp = ({ noValue, value }) => (
  <Slider value={noValue ? undefined : value} />
)

Best way to Conditionally add Props : reactjs, Here's a way I do it, its short, simple and sweet. with Conditional: I still prefer using the I still prefer using the regular way of passing props down because it is more Now, here's how I write React: if a component needs state, I make it a class,� This example renders a different greeting depending on the value of isLoggedIn prop. Element Variables . You can use variables to store elements. This can help you conditionally render a part of the component while the rest of the output doesn’t change. Consider these two new components representing Logout and Login buttons:

You can do this way

  const Comp = ({noValue, value}) => (
     <Slider value={noValue ? null : value} />
  )

Or

const Comp = ({noValue, value}) => {
     if(noValue){
        return <Slider />
     }
     return <Slider value={value}>
}

Conditional Rendering – React, We'll create a Greeting component that displays either of these components depending on whether a user is logged in: function Greeting(props) { const� Props are arguments passed into React components. Props are passed to components via HTML attributes. To send props into a component, use the same syntax as HTML

You can do it as follows:

const Comp = ({value}) => (
    value ?
   <Slider value={value}> 
   :
   <Slider />
)

This should help.

How to pass props to components in React, You can read up this tutorial about all the conditional renderings in React. The state makes the React components interactive. You can read and� React is a library for creating front-end views. It has a big ecosystem of libraries that work with it. Also, we can use it to enhance existing apps. We can conditionally render items in React…

Props! — and how to pass props to components in React . (part_1 , Props are basically arguments to our react components that allows us to pass data from one component to another on the component tree. This is how conditional rendering works in React. The state is what actually makes our React components interactive. We can read/write our state, unlike the read-only props. What is really important to note is that whenever our state changes, the corresponding React component is re-rendered.

Props and Conditional Rendering - DEV, In this guide, we'll go through the React props in detail. We'll also look at how we can pass a props object from a child component to a parent component. This is how conditional rendering works in React. The state is what� Most components can be customized when they are created, with different parameters. These created parameters are called props, short for properties. For example, one basic React Native component is the Image. When you create an image, you can use a prop named source to control what image it shows.

How to Pass Props Object from Child Component to Parent , To do so, you simply assign a defaultProps object to the component; when React renders the component, the default props will be used unless� Here’s a good article about optimizing conditional rendering in React — I totally recommend you read it. The essential idea is that changing the position of the components due to conditional rendering can cause a reflow that will unmount/mount the components of the app. Based on the example of the article, I created two JSFiddles.