Tap to Read ➤
Tap to Read ➤
JavaScript is a versatile programming language commonly used for creating interactive and dynamic elements on websites.
Tap to Read ➤
"let" is for variables that can change, "const" is for variables that stay the same, and "var" is the old way of declaring variables in JavaScript.
Tap to Read ➤
The event loop in JavaScript is like a traffic cop directing cars on a road, ensuring smooth flow, and handling interruptions, such as traffic signals, without causing a complete halt.
Tap to Read ➤
Closures in JavaScript are like little memory bubbles that remember specific information even after the party (function) is over, ensuring that your code can access and use that information later on.
Tap to Read ➤
The 'this' keyword in JavaScript refers to the current object or context and allows you to access and manipulate its properties
Tap to Read ➤
In JavaScript, prototypal inheritance allows objects to inherit properties and methods from other objects through a prototype chain, enabling the sharing of behavior between objects.
Tap to Read ➤
In JavaScript, 'undefined' is a default value assigned to uninitialized variables, while 'null' is an intentional absence of any object value.
Tap to Read ➤
'Callback hell' refers to the situation in JavaScript where multiple nested callbacks make the code difficult to read and maintain; avoiding it can be achieved through modularization or using modern approaches like Promises or async/await.
Tap to Read ➤
In JavaScript, '==' performs type coercion, allowing values of different types to be compared, while '===' strictly checks both value and type, ensuring they are identical.
Tap to Read ➤
The 'async/await' feature in JavaScript simplifies asynchronous code execution, allowing developers to write asynchronous operations in a more synchronous style, enhancing readability and maintainability.
Tap to Read ➤