React Js handle multiple radio button in map function
React Js handle multiple radio button in map function:In React.js, handling multiple radio buttons within a map function involves a few steps.
First, you need to create an array of objects or data that represents each radio button and its associated value. Then, within the map function, you can iterate over this array and render each radio button using the data.
To handle the selection, you can assign a unique value to the "name" attribute of each radio button, and use the "checked" attribute to determine if a radio button is selected.
Additionally, you can use the "onChange" event to update the selected value in the state or a variable.
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How can React JS handle multiple radio buttons efficiently using the `map` function?
The given code is a ReactJS component that handles multiple radio buttons using the map function. It uses the useState hook to manage the state of the selected answers.
The selectedAnswers state is an object that keeps track of the selected option for each question. When a radio button is selected, the handleOptionChange function is called with the question ID and option ID as arguments. It updates the selectedAnswers state by creating a new object using the spread operator and assigning the selected option ID to the corresponding question ID key.
The component renders a list of questions and their options using the map function. For each question, it renders a paragraph with the question text and a set of radio buttons. The checked attribute of each radio button is determined by comparing the selected option ID stored in the state with the current option ID. When an option is selected, the onChange event triggers the handleOptionChange function to update the state.
Finally, there is a submit button that logs the selected answers to the console when clicked.
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