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Beginners Guide to props and useState in ReactJS

a_shokn profile image Ashok Naik ・2 min read

I started my Journey to learn ReactJS by the end of 2019, I have learned Angular and Flutter SDK by making small projects that use the basic concepts of that language/framework. I am trying to do the same with ReactJs.

You can Easy SetUp ReactJs by following this link

I made a simple app to list down my goals. React Bolier-Plate code comes with a default Component call App.

A React component is a function that returns JSX(JSX is an XML/HTML-like syntax).

Using Components you can easily code individual features and tie them together, My app had two features first was to create a goal and second to list the created goals. The Creation of the Goal was done with the help Of NewGoal Component as I was dealing with user input I had to make use of useState hooks and also for communication between components I used props.

You can get to know more about useState hooks and props by following this link

In the NewGoal component, there is a simple form with an onSubmit attribute along with an input element and a button, the input element passes the entered text to function called addGoalHandler which sends the value to the App Component with the help of props.

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The Second Component called GoalList which is responsible to list the Goals, this component received an array of goals from the App Component and render in an unordered list.

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The App Component acted as a root-component which was responsible to get the values from the NewGoal Component and send it to the Goal List Component.

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https://github.com/AshokNaik009/react_refresher

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