My React Journey Day1

I am super excited to kick off my journey in React Native! Building mobile apps has always been a dream of mine, and today, I took the first step towards making it a reality.

My focus today was on Variables (var, let, const) and Data Types (strings, numbers, arrays, booleans, and objects). Here's what I learned:

Variables (VAR, LET, CONST)
Understanding the differences between these three was eye-opening:

var: Can be reassigned and redeclared. It has function scope, which makes it more exposed and less secure in modern coding practices.
let: Can be reassigned but not redeclared. It uses block scope, making it safer and more preferred than var.
const: Cannot be reassigned or redeclared. Like let, it has block scope. It's perfect for values that should remain constant.

One takeaway: if a value shouldn't change, always use const. It ensures your code stays clean and predictable.

Data Types
Here's a quick breakdown of the data types I explored today:

Strings: A string is any text enclosed in either double quotes (" ") or single quotes (' '). For example, "Hello, world!" is a string.
Numbers: Any numeric value from 0 - 9, like 42 or 3.14, belongs to the number type.
Arrays: Think of an array as a collection of values stored in a single variable. For example, [1, 2, 3] or ['apple', 'banana', 'cherry'].
Booleans: This data type has only two possible values: true or false. It’s great for decision-making in code.
Objects: Objects are collections of related data in key-value pairs. For instance:

const person = {
  name: 'Jane',
  age: 25,
  greet: function () {
    return 'Hello!';
  }
};

Objects can even include methods (functions) that belong to the object itself!

Final Thoughts
Overall, today was a beautiful learning ride. I feel more confident about the basics and can't wait to dive deeper tomorrow.

If you're also starting out or looking for a reason to learn React Native, why not join me on this daily challenge/ride? Let's build something amazing together!

Stay tuned for Day 2!