Symbol: Unique Identifiers in JavaScript

A Symbol is a special type whose value is always unique. It's useful when you need property keys that won't clash with anything else. You'll see it more in advanced code and libraries.

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Symbol: Unique Identifiers in JavaScript

A Symbol is a special type whose value is always unique. It's useful when you need property keys that won't clash with anything else. You'll see it more in advanced code and libraries.

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JavaScript Objects: Key-Value Pairs

Objects store related data as key-value pairs. The key is a label, and the value is the data. Each pair is called a property. Objects are perfect for grouping structured information.

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JavaScript Objects: Key-Value Pairs

Objects store related data as key-value pairs. The key is a label, and the value is the data. Each pair is called a property. Objects are perfect for grouping structured information.

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Undefined vs Null in JavaScript

undefined means a variable exists but doesn't have a value yet. null means you intentionally set it to "nothing." Both represent "no value," but undefined is accidental, null is on purpose.

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Undefined vs Null in JavaScript

undefined means a variable exists but doesn't have a value yet. null means you intentionally set it to "nothing." Both represent "no value," but undefined is accidental, null is on purpose.

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True or False? Understanding Booleans

A Boolean can only be true or false. Booleans are great for questions like "Is the user logged in?" or "Is the page loading?" They drive decisions and conditional logic in your code.

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True or False? Understanding Booleans

A Boolean can only be true or false. Booleans are great for questions like "Is the user logged in?" or "Is the page loading?" They drive decisions and conditional logic in your code.

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Working with Strings in JavaScript

A String is text wrapped in quotes. It can hold words, sentences, or any characters. You can use single or double quotes—both work. Strings are used for names, messages, labels, and more.

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Working with Strings in JavaScript

A String is text wrapped in quotes. It can hold words, sentences, or any characters. You can use single or double quotes—both work. Strings are used for names, messages, labels, and more.

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What Are Data Types in JavaScript?

In JavaScript, a data type describes the kind of value a variable holds. A variable is just a named container for data. Types like numbers, text, and booleans help your code know how to store, compare, and work with values.

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JavaScript Numbers Explained

The Number type handles both whole numbers and decimals. Integers are values like 7 or 90. Floating-point numbers include a decimal, like 3.14 or 5.2. You'll use Number for most numeric work in JavaScript.

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Hey! December's here and I'm trying something new sharing what I learn every day. Small wins, aha moments, and funny stuff from building in public. Just figuring things out as I go and hoping it helps you too. Let's learn together.

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JavaScript Numbers Explained

The Number type handles both whole numbers and decimals. Integers are values like 7 or 90. Floating-point numbers include a decimal, like 3.14 or 5.2. You'll use Number for most numeric work in JavaScript.

#LearnInPublic #js

What Are Data Types in JavaScript?

In JavaScript, a data type describes the kind of value a variable holds. A variable is just a named container for data. Types like numbers, text, and booleans help your code know how to store, compare, and work with values.

#LearnInPublic #js

Hey! December's here and I'm trying something new sharing what I learn every day. Small wins, aha moments, and funny stuff from building in public. Just figuring things out as I go and hoping it helps you too. Let's learn together.

#LearnInPublic #tech