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What are JavaScript best practices for beginners?

Asked on Sep 09, 2024

Answer

When learning JavaScript, beginners should focus on writing clean, maintainable, and efficient code. Here are some best practices to get started.
<!-- BEGIN COPY / PASTE -->
        // Use 'let' and 'const' instead of 'var'
        const pi = 3.14;
        let radius = 5;

        // Use descriptive variable names
        let areaOfCircle = pi * radius * radius;

        // Use template literals for string concatenation
        console.log(`The area of the circle is: ${areaOfCircle}`);

        // Use arrow functions for concise syntax
        const square = (x) => x * x;
        console.log(square(4));

        // Use strict equality '===' to avoid type coercion
        if (radius === 5) {
            console.log("Radius is exactly 5");
        }
        <!-- END COPY / PASTE -->
Additional Comment:
  1. Use "let" and "const" instead of "var" to declare variables, as they provide block scope and prevent hoisting issues.
  2. Choose descriptive variable names to make your code more readable and maintainable.
  3. Utilize template literals (backticks) for easier string concatenation and embedding expressions.
  4. Adopt arrow functions for shorter syntax, especially for simple functions.
  5. Always use strict equality "===" to prevent unexpected type conversions.
✅ Answered with JavaScript best practices.
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