Const vs Let vs Var in JavaScript

React Interview Question's Answer

What is JSX, and how does it differ from regular JavaScript and HTML?

- What is JSX?

JSX (JavaScript XML) is a syntax extension for JavaScript, often associated with React, a popular JavaScript library for building user interfaces.
JSX allows you to write HTML-like code within your JavaScript files, making it easier to define and render UI components in a more declarative way.

- Differences from Regular JavaScript:

1. Mixing HTML and JavaScript:
In JSX, you can seamlessly mix HTML-like elements with JavaScript expressions.
This allows you to dynamically generate content based on data or component state.
In regular JavaScript, you'd need to concatenate strings or use other methods to achieve the same result, which can be more cumbersome.

2. Component Rendering:

JSX is closely tied to React components.
You define the structure of your UI using JSX elements, and React takes care of rendering these components into the DOM.
In contrast, regular JavaScript doesn't provide a built-in way to create reusable UI components.

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-Acknowledge achievements: Recognize success.
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5 Commonly Used Units of Measurement in CSS:

1. Pixels (px)
2. Percentages (%)
3. Rem
4. Em
5. Viewport units (vw, vh)

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Step 1: 🌐 Master Web Basics
Step 2: 🖥 HTML/CSS Proficiency
Step 3: ✨ Deep Dive into JavaScript
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Step 5: 🐍 Node.js for Server-Side
Step 6: 🗃 Express.js for Routing
Step 7: 📦 NPM for Package Management
Step 8: 📚 MongoDB for Databases
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CSS Border radius tips you should know as a UI/UX Designer
#CSS

⚡️parseInt()
and
⚡️Number()

both converts string to number however there is a big difference between both

⚡️ parseInt() reads the string from left to right & stops parsing when it encounters a non-numeric character.

It returns the numeric value parsed up to that point.

example: parseInt("19abc") -> returns 19

⚡️Number() is more strict.

If the string contains any non-numeric characters (except for whitespace), it returns NaN

example: Number(123abc) -> returns NaN

⚡️Also if string is in float then Number() will return float number but parseInt() will only return integer.

example:
parseInt("6.9") -> returns 6 only
Number("18.5") -> returns 18.5

This makes a big impact especially when you are handling data that can have string values as well attached to the number.

In that case use parseInt() other wise use Number().

@javascript_resources #javascript

This is how I update my copyright year using JavaScript.

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13 Git commands that cover 90% of Git.

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-Coding is so simple.

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-Happy Coding


#motivation

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