JavaScript Utility Functions

In this section, we will explore some common utility functions in JavaScript that can greatly enhance your coding experience. Whether you are a beginner or an experienced developer, these functions can help you write cleaner, more efficient code.

Common Utility Functions

  1. console.log() - This function is used to print messages to the console. It's a great way to debug your code.
  2. Math.random() - This function generates a random number between 0 and 1. It's often used in games and simulations.
  3. String.prototype.trim() - This method removes whitespace from both ends of a string. It's useful for cleaning up user input.

Example Usage

Here's an example of how you can use some of these utility functions in a real-world scenario:

// Generate a random number between 1 and 100
let randomNumber = Math.floor(Math.random() * 100) + 1;

// Trim whitespace from a user's input
let userInput = "   Hello, World!   ";
let cleanedInput = userInput.trim();

console.log(randomNumber);
console.log(cleanedInput);

Learn More

If you want to dive deeper into JavaScript utility functions, we recommend checking out our JavaScript Basics tutorial.

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