@VandanaKri
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Jun 11, 2023 · 2 min read · What are data types in JavaScript Data types in JavaScript are used to specify the type of value or data a variable can store or hold and determine the operations that can be performed on it. How to know the data type of variable? In Javascript, we c...
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Feb 14, 2023 · 7 min read · Lifecycle methods are series of events that happen throughout the birth, growth, and death of a React component. Let’s look at a simple example. If I told you to build a Hello World component, you might write something like this: class Header extends...
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Feb 14, 2023 · 2 min read · Promises are used to handle asynchronous operations in JavaScript. They are easy to manage when dealing with multiple asynchronous operations where callbacks can create callback hell leading to unmanageable code A JavaScript promise is created with t...
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Feb 14, 2023 · 1 min read · A class component requires you to extend from react component and create a render function that returns a react element. A bit confusing? Let’s take a look at a simple example. class Welcome extends React.Component { render() { return <h1>Hello...
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Jan 28, 2022 · 1 min read · What actually is an Execution Context ? Execution context is the concept for describing the internal working of a code. In JavaScript, the environment that enables the JavaScript code to get executed is what we call JavaScript Execution Context. It ...
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