Google Sheets: Extract Last Characters from String

Return the last number of characters of a string function LAST_VALS(str,num){  if(num >= str.length){    return str;  }  return str.slice(str.length – num); } The provided code defines a function called LAST_VALS that takes two parameters: str and num. The function returns the last num characters from the str string. Here is a detailed explanation of how … Read more

Google Sheets Formulas Examples and source code

Google Sheets Formulas Capitalize the first letter of each word in a given string function CAPITALIZE_WORDS(str) {  const words = str.split(‘ ‘);  for(let i=0;i<words.length;i++){    words[i] = words[i].charAt(0).toUpperCase() + words[i].slice(1).toLowerCase();  }  return words.join(‘ ‘); } The given code defines a function called CAPITALIZE_WORDS that takes a string str as an argument. The purpose of the function … Read more

Free Ebook Quick Guide to Advanced JavaScript 78pg ebook download here

What are the different data types in JavaScript? What is the difference between null and undefined in JavaScript? How does JavaScript handle asynchronous operations? Explain the concept of closures in JavaScript What are the differences between var, let, and const? What is hoisting in JavaScript? Explain the event delegation in JavaScript What is the difference … Read more

Explain the concept of “strict mode” in JavaScript.

“Strict mode” is a feature in JavaScript that enforces stricter parsing and error handling, aiming to make JavaScript code more robust, eliminate certain error-prone behaviors, and help developers write cleaner code. When strict mode is enabled, the JavaScript interpreter applies a set of rules and throws more errors in specific situations. To enable strict mode, … Read more

What are JavaScript modules? How do you export and import them?

JavaScript modules are a way to organize and encapsulate code into reusable units. They allow you to break down your codebase into smaller, self-contained modules, each responsible for a specific functionality. Modules improve code maintainability, reusability, and enable better collaboration among developers. JavaScript modules follow the ES modules (ESM) specification, which is supported by modern … Read more

How can you convert a string to a number in JavaScript?

In JavaScript, there are several methods to convert a string to a number. Here are some commonly used techniques: parseInt() function: The parseInt() function is used to parse a string and convert it to an integer. It takes two arguments: the string to be converted and an optional radix (base) value. Example: const stringNum = … Read more

Explain the concept of the event loop in JavaScript.

The event loop is a critical component of JavaScript’s concurrency model. It manages the execution of asynchronous operations and ensures that JavaScript remains responsive even while performing time-consuming tasks. Understanding the event loop is crucial for writing efficient and responsive JavaScript code. JavaScript is single-threaded, meaning it can only execute one task at a time. … Read more

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