Binding Methods In React Components

I'm getting an error when I try to bind values to the component function handleInput: Uncaught TypeError: Cannot read property 'bind' of undefined However, when I insert the input

Solution 1:

You can only write valid HTML when generating Html from a string with react.

<input type='text' onInput=this.handleInput.bind(this, id)/> is not valid: onInput is not a HTML valid props

Generating a jsx string to HTML with react is a special case requiring babel.

I don't think you'll be able to insert jsx string in a component on the fly using a string but there is may be another solution. Split your string into an array and replace matching string by not a string code "<../>" but by a jsx element <...>. This jsx element will have the function binding as wanted to your component. I found a similar solution here: Replace part of string with tag in JSX

Solution 2:

There is a proper way to render a string with react:

Use dangerouslySetInnerHTML to inject HTML as a string in React. Subject is treated here

Regards

Solution 3:

You can set the bind key word at the end like below instead of the example you have given.

onInput=this.handleInput(id).bind(this)

or just call this method here and bind it at the constructor level.

onInput=this.handleInput(id)

constructor() {
   super();
   this.handleInput=this.handleInput.bind(this);
 }