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Full Stack Developer Without Degree: How to Become One

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If you're interested in becoming a Full Stack Developer without a degree, we've put together some tips and resources to help you get started. Learn the Fundamentals The first step to becoming a Full Stack Developer is to learn the fundamentals of coding. You can start with HTML, CSS, and JavaScript, which are the building blocks of web development. There are plenty of free resources available online, such as Codecademy and FreeCodeCamp, which offer interactive courses that teach you the basics of web development. Once you have a solid understanding of the basics, you can move on to more advanced topics such as back-end development, databases, and frameworks. You can learn these topics through online courses or by working on personal projects. Build a Portfolio One of the most important things you can do as a Full Stack Developer is to build a portfolio. Your portfolio should showcase your skills and experience and demonstrate your ability to build real-world applications. You c...
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Top questions about JavaScript Data Types and Declarations: Strings, Numbers, Booleans, and NaN

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How do you declare a string value in JavaScript?

To declare a string value in JavaScript, you can use single quotes, double quotes, or backticks.

let str = "SmartTechLearning";

let str = 'SmartTechLearning';

let str = `SmartTechLearning`;

//Here in javascript strings are text values. so when we declare a text value we need to use "" for that value otherwise it will give us ReferenceError

How do you declare a number value in JavaScript?

To declare a number value in JavaScript, you can simply assign a number to a variable using the let or const or var, 

let num = 12;
let pi = 3.14;         // floating-point number
const maxNumber = 9000; // constant integer value

//In javascript we don't need to use "" or '' or `` these symbols only for string values. if we use "12" then it will become a string, not a number.

In JavaScript, all numbers are represented using the number data type, which can include both integer and floating-point values.

How do you declare a boolean value in JavaScript?

To declare a boolean value in JavaScript, you can assign either true or false to a variable using the let or const keyword. 

Here are some examples:

let isRaining = true;
let isSunny = false;
const isNightTime = true;

In JavaScript, a boolean value can only be true or false. Boolean values are often used in conditional statements and logical operations to control the flow of a program.

What is NaN in JavaScript?

NaN stands for "Not a Number" in JavaScript, and it is a value of the number data type. In JavaScript, NaN is a special value that represents the result of an operation that is not a valid number. For example, dividing a number by zero or performing arithmetic operations on non-numeric data types can result in NaN.

let x = "Hello" 
console.log(x);   // Output: NaN

Note:

It's important to note that NaN is not equal to any value, including itself. This means that you cannot use the == or === operators to test for NaN. Instead, you can use the isNaN() function to check if a value is NaN:

isNaN(NaN);        // Output: true
isNaN(42);         // Output: false
isNaN("Hello");    // Output: true

he isNaN() function returns true for NaN and for non-numeric values like "Hello", and false for numeric values like 42.

Conclusion:

Congratulations on finishing the article! You now have a solid understanding of the fundamental JavaScript values and how to work with them in your code. I hope this has been helpful in advancing your knowledge of JavaScript and building better applications. Please feel free to share your thoughts and feedback in the comments section below. Your engagement is greatly appreciated and will help me create more valuable content in the future. Thank you for reading!

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