Deep Dive into JavaScript Primitives | Object Wrappers, Methods & Numbers

Описание: Deep Dive into JavaScript Primitives | Object Wrappers, Methods & Numbers

Unlock the full potential of JavaScript primitives in this comprehensive tutorial covering methods, numbers, and strings. This video explains how primitives like strings, numbers, booleans, and symbols can provide methods, even though they are not objects. You’ll also learn the details of numeric precision, rounding, parsing, and string manipulation techniques.

Key topics in this video:

Understanding primitives vs objects and the internal object wrappers

Accessing methods on strings, numbers, and booleans

Number formats: decimals, big integers, scientific notation, hexadecimal, binary, and octal

Rounding methods: Math.floor, Math.ceil, Math.round, Math.trunc, and toFixed

Handling floating-point precision issues and reliable rounding techniques

Converting strings to numbers using Number(), parseInt(), parseFloat()

Working with strings: quotes, backticks, template literals, escape characters

Accessing characters with [] and .at(), iterating strings with for..of

String methods: .toUpperCase(), .toLowerCase(), .indexOf(), .includes(), .startsWith(), .endsWith(), .slice(), .substring(), .substr()

Comparing strings and handling Unicode characters with .localeCompare()

By the end of this tutorial, you’ll understand how JavaScript handles primitives internally, use their built-in methods efficiently, and manage numbers and strings correctly in your code. This is essential knowledge for both beginners and intermediate developers to write clean, bug-free JavaScript.

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