What does ‘stack underflow’ refer to?
Anonymous Quiz
18%
accessing item from an undefined stack
15%
adding items to a full stack
52%
removing items from an empty stack
15%
index out of bounds exception
What was the original name of JavaScript when it discovered?
Anonymous Quiz
20%
LiveScript
29%
EScript
39%
JScript
12%
Mocha
❤1
What is JSX?
JSX (JavaScript XML) is a special syntax in React that lets you write HTML-like code inside JavaScript. It makes your code more readable and intuitive because you can describe the UI directly in your JavaScript code.
Why is JSX useful?
✅ Easier to write & read – Looks like HTML but works inside JavaScript.
✅ More powerful than HTML – You can use variables, functions, and logic directly inside JSX.
✅ Optimized by React – JSX gets converted into super-efficient JavaScript calls behind the scenes.
Example of JSX in action:
🚀 Here,
JSX is not HTML – it's just syntactic sugar for React.createElement(). You must wrap elements properly (e.g., use one parent tag).
Want to build awesome React apps? JSX is the way to go! 🔥
JSX (JavaScript XML) is a special syntax in React that lets you write HTML-like code inside JavaScript. It makes your code more readable and intuitive because you can describe the UI directly in your JavaScript code.
Why is JSX useful?
✅ Easier to write & read – Looks like HTML but works inside JavaScript.
✅ More powerful than HTML – You can use variables, functions, and logic directly inside JSX.
✅ Optimized by React – JSX gets converted into super-efficient JavaScript calls behind the scenes.
Example of JSX in action:
const name = "Borislav";
const element = <h1>Hello, {name}!</h1>;
🚀 Here,
{name} is a JavaScript variable inside JSX!JSX is not HTML – it's just syntactic sugar for React.createElement(). You must wrap elements properly (e.g., use one parent tag).
Want to build awesome React apps? JSX is the way to go! 🔥
👍1
What do you understand by Virtual DOM?
Think of the Virtual DOM like a draft version of your web page. Instead of changing the actual page (which is slow), React updates this lightweight copy first. Then, it smartly compares the draft with the real page and updates only the necessary parts kind of like editing a document without retyping the whole thing.
Result? Faster updates, smoother performance, and a better user experience! 🚀
Think of the Virtual DOM like a draft version of your web page. Instead of changing the actual page (which is slow), React updates this lightweight copy first. Then, it smartly compares the draft with the real page and updates only the necessary parts kind of like editing a document without retyping the whole thing.
Result? Faster updates, smoother performance, and a better user experience! 🚀
👍2
In C, if we pass an array as an argument to a function, what actually get passed?
Anonymous Quiz
20%
Address of the last element of array
45%
Base address of the array
20%
Value of elements in array
14%
First element of the array