ReactJS Refs are used to access and modify the DOM elements in the React Application. It creates a
ReactJS keys are an important concept for handling dynamic content, especially when rendering lists of elements.
React forms are the way to collect user data in a React application. React typically uses controlled components
ReactDom is a core react package that provides methods to interact with the Document Object Model or DOM. This
Ternary Operator: The “Question mark” or “conditional” operator in JavaScript is a ternary operator that has three operands.
Operator precedence refers to the priority given to operators while parsing a statement that has
JavaScript var is a keyword used to declare variables in JavaScript that are function scoped. Before the
JavaScript Const ES2015 (ES6) introduced the const keyword to define a new variable. The difference
JavaScript let is a keyword used to declare variables in JavaScript that are block scoped. Two new
Global Variable: These are variables that are defined in global scope i.e. outside of functions. These
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