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In JavaScript, hoisting is a behavior where variable and function declarations are moved to the top of their containing scope during the execution...
Block Referring to is grouping multiple statements together inside a block (curly braces {}) in JavaScript. This is often done when JavaScript expects...
In React 18 When a user wants to change their name, the process typically involves typing the new name into an input box and then clicking the submit...
Before promises, we handled asynchronous operations using callback functions, but callbacks are not a good way to handle asynchronous...
1. Basics of JavaScript variables: var, let, and const var: Function-scoped. Can be redeclared and updated. Example: var x = 10; var x = 20; ...