Tips for defining the function type in Props

After coding a component in React using Typescript, I encountered an issue

Within the interface, all prop types are defined for reference.

import * as React from 'react';
import * as ReactDOM from 'react-dom';
import { Task } from './Models';

export class TaskTable extends React.Component<TableProps, any> {
   constructor(props: TableProps){
      super(props);
   }
   render() : JSX.Element {
      console.log('came inside render method');
      return (
         <div>
            {this.props.taskList.map((t: Task, index: number) => 
               <div key={t.taskid}>
                  <span>{t.taskvalue}</span>
                  <button onClick={this.props.handleDelete(index)}>Delete</button>
               </div>
            )}
         </div>
      );
   }
}

interface TableProps {
   taskList: Array<Task>
}

The specific challenge lies in defining the type of handleDelete within my TableProps interface

<TaskTable taskList=[{taskid: 1, taskvalue: 'foo'}] handleDelete={this.handleDelete} />

In what way can I declare the type of handleDelete correctly?

Answer №1

What is the recommended method for defining the type of handleDelete within TableProps interface?

Here's how it should be done 🌺

interface TableProps {
   listItems: Array<Item>,
   handleDelete: (id: string) => void,
}

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