Dynamically add attributes in React render input

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I have an input tag in render like this:

<input id="time" type="time">

and I need dynamimically add value attribute

How can I do this in React? Thanks in advance

Yes, you can do. e.g. props is an object which contains props or properties that you want to add based on some condition then you can something like

 const props = { id: 'time', type: 'time' };
 if (condition1) {
    props.value = 'some value';
 }
 if(condition2) {
    props.abc = 'some other value';
 }   
 <input {...props} >

Dynamic attribute in ReactJS, The cleanest way to add optional attributes (including disabled and others you might want to use) is currently to use JSX spread attributes: In React you can conditionally render Components, but also their attributes, like props, className, id, and more. In React it's very good practice to use the ternary operator which can help you conditionally render Components. An example also shows how to conditionally render Component and its style attribute. Here is a simple example:

You should add an onchange attribute on the input which changes the state of your component. This will look something like this:

<input type="text" value={this.state.value} onChange={this.handleChange} />

The handleChange method should then look something like this:

handleChange = (event) => {
    this.setState({value: event.target.value});
  }

For more information check out the following article: https://reactjs.org/docs/forms.html

Building a Dynamic, Controlled Form with React, React makes building UI's in JavaScript easy, but some things can name and a short description, and then dynamically add cat inputs. In this case, we'll render the static base Form, then figure out how to But we're using [] so that we can dynamically match our state using each input's name attribute. By using spread attributes, you can dynamically add (or override) whatever attributes you’d like by using a javascript object instance. In my example above, the code creates a disabled key (with a disabled value in this case) when the disabled property is passed to the Hello component instance.

You would need to set the state of React. So...

this.setState({
  myValue: newValue
})

Then, inside render:

<input id="time" type="time" value={this.state.myValue}>

This assumes you have your state setup with a constructor. Which is a whole other can of worms.

DOM Elements – React, The checked attribute is supported by <input> components of type checkbox or used in React applications to add dynamically-computed styles at render time. Passing an element vs. a react class to an optionally displayed modal. reactjs,react-bootstrap. Since Griddle uses the customComponent property to render each item in a column, it must be a ReactComponent class, otherwise it would render the exact same component for each row.

DOM Attributes in React 16 – React Blog, If you wrote JSX with an attribute that React doesn't recognize, React Since React components often take both custom and DOM-related  Yes, you can add fields dynamically. On the demo repository, you can find an example, it uses a select input to create new fields, but you can start from that code and change it for your needs:

I guess you are rendering the tag within a render() function within a JSX expression (otherwise you would have added it through normal Javascript or JQuery).

Therefore the JSX expression will have something like:

<input id="time" type="time" value={yourValue}>

making sure that yourValue is in scope within the context of execution of your render() in your ReactComponent class or in the props. Alternatively it could be in the state.

Dynamic Form Fields in React - DEV Community ‍ ‍ , This could be for various reasons, for instance, to add multiple members as part of Using React Hooks, initialise the form input fields like so: and do a simple check for the input field based on the name attribute of that field. When we click the “add new cat” button, we’ll add a new object to our array. Since this will change our state, it will trigger a re-render. Then, our form will iterate over this new list of cats, it will add another pair of inputs. To start, let’s just worry about putting the first blank cat object into our state, and then render that:

Updating html attributes dynamically in React : reactjs, Updating html attributes dynamically in React update a html attribute of a loading bar whenever a user enters a number in input. setState({ reading: event.target.value }); } render() { return ( <React. More posts from the reactjs community. Contents in this project Dynamically Add Render View Component on Button Click in Android iOS App Example Using Animation: 1. Import StyleSheet, View, Text, Image, ScrollView, TouchableOpacity, Animated and Platform component in your project.

How to render dynamic component defined in JSON using React , With React it is easy to render dynamic components utilizing JSX and React. objects with different fields and one attribute called component which Once created we need to set-up the custom Components function we  In this article I will try to teach how to create a dynamic table in react. Ya I know its quite simple, but this tutorial is for beginners and a beginner should know how to get this kind of stuff done. I am assuming you know how to create a project and how javascript classes work. If you dont't, read this article first.

React.js cheatsheet, React.Component · render() · componentDidMount() · props/state Use this.​props to access properties passed to the component. See: Properties Use states ( this.state ) to manage dynamic data. As of React v16.2.0, fragments can be used to return multiple children without adding extra wrapping nodes to the DOM. Spread Attributes #. Now you can use a new feature of JSX called spread attributes: var props = {}; props.foo = x; props.bar = y; var component = <Component {props} />; The properties of the object that you pass in are copied onto the component's props.