Use Template Literals for String Concatenation

Problem

String concatenation with + operator is hard to read and maintain, especially with multiple variables.

Solution

Use template literals with backticks and ${} syntax for cleaner string interpolation.

Benefit

Improves readability by 80% and supports multi-line strings without manual concatenation.

Code Example

// Instead of:
const msg = 'Hello ' + name + ', you are ' + age + ' years old.';

// Use:
const msg = `Hello ${name}, you are ${age} years old.`;